Merge branch '4' into 5.0

# Conflicts: # client/dist/js/TinyMCE_sslink-anchor.js # client/dist/js/TinyMCE_sslink-internal.js # composer.json # tests/behat/features/insert-a-link.feature # tests/behat/features/insert-anchor-link.feature
2024-06-26 06:29:35 +02:00 · 2023-09-23 13:23:31 +00:00 · 2023-09-18 11:10:29 +12:00 · 2023-09-11 12:33:00 +12:00 · 2023-09-05 15:19:35 +12:00 · 2023-08-29 17:08:18 +12:00
151 changed files with 7391 additions and 13093 deletions
--- a/.github/workflows/keepalive.yml
+++ b/.github/workflows/keepalive.yml
@ -1,10 +1,10 @@
 name: Keepalive

 on:
-  workflow_dispatch:
-  # The 4th of every month at 10:50am UTC
+  # At 6:30 PM UTC, on day 15 of the month
  schedule:
-    - cron: '50 10 4 * *'
+    - cron: '30 18 15 * *'
+  workflow_dispatch:

 jobs:
  keepalive:
--- a/.github/workflows/merge-up.yml
+++ b/.github/workflows/merge-up.yml
@ -0,0 +1,17 @@
+name: Merge-up
+
+on:
+  # At 1:20 PM UTC, only on Saturday
+  schedule:
+    - cron: '20 13 * * 6'
+  workflow_dispatch:
+
+jobs:
+  merge-up:
+    name: Merge-up
+    # Only run cron on the silverstripe account
+    if: (github.event_name == 'schedule' && github.repository_owner == 'silverstripe') || (github.event_name != 'schedule')
+    runs-on: ubuntu-latest
+    steps:
+      - name: Merge-up
+        uses: silverstripe/gha-merge-up@v1
--- a/.github/workflows/update-js.yml
+++ b/.github/workflows/update-js.yml
@ -4,7 +4,7 @@ on:
  workflow_dispatch:
  # Run on a schedule of once per quarter
  schedule:
-    - cron: '0 0 1 */3 *'
+    - cron: '30 18 1 */3 *'

 jobs:
  update-js:
--- a/.nvmrc
+++ b/.nvmrc
@ -1 +1 @@
-10
+18
--- a/.upgrade.yml
+++ b/.upgrade.yml
@ -1,161 +0,0 @@
-mappings:
-  CMSBatchAction_Publish: SilverStripe\CMS\BatchActions\CMSBatchAction_Publish
-  CMSBatchAction_Unpublish: SilverStripe\CMS\BatchActions\CMSBatchAction_Unpublish
-  CMSBatchAction_Archive: SilverStripe\CMS\BatchActions\CMSBatchAction_Archive
-  CMSBatchAction_Restore: SilverStripe\CMS\BatchActions\CMSBatchAction_Restore
-  CMSMain: SilverStripe\CMS\Controllers\CMSMain
-  CMSPageAddController: SilverStripe\CMS\Controllers\CMSPageAddController
-  CMSPageEditController: SilverStripe\CMS\Controllers\CMSPageEditController
-  CMSPageHistoryController: SilverStripe\CMS\Controllers\CMSPageHistoryController
-  CMSPagesController: SilverStripe\CMS\Controllers\CMSPagesController
-  CMSPageSettingsController: SilverStripe\CMS\Controllers\CMSPageSettingsController
-  CMSSiteTreeFilter: SilverStripe\CMS\Controllers\CMSSiteTreeFilter
-  CMSSiteTreeFilter_PublishedPages: SilverStripe\CMS\Controllers\CMSSiteTreeFilter_PublishedPages
-  CMSSiteTreeFilter_DeletedPages: SilverStripe\CMS\Controllers\CMSSiteTreeFilter_DeletedPages
-  CMSSiteTreeFilter_ChangedPages: SilverStripe\CMS\Controllers\CMSSiteTreeFilter_ChangedPages
-  CMSSiteTreeFilter_StatusRemovedFromDraftPages: SilverStripe\CMS\Controllers\CMSSiteTreeFilter_StatusRemovedFromDraftPages
-  CMSSiteTreeFilter_StatusDraftPages: SilverStripe\CMS\Controllers\CMSSiteTreeFilter_StatusDraftPages
-  CMSSiteTreeFilter_StatusDeletedPages: SilverStripe\CMS\Controllers\CMSSiteTreeFilter_StatusDeletedPages
-  CMSSiteTreeFilter_Search: SilverStripe\CMS\Controllers\CMSSiteTreeFilter_Search
-  ContentController: SilverStripe\CMS\Controllers\ContentController
-  ErrorPageControllerExtension: SilverStripe\ErrorPage\ErrorPageControllerExtension
-  ErrorPageFileExtension: SilverStripe\ErrorPage\ErrorPageFileExtension
-  LeftAndMainPageIconsExtension: SilverStripe\CMS\Controllers\LeftAndMainPageIconsExtension
-  ModelAsController: SilverStripe\CMS\Controllers\ModelAsController
-  OldPageRedirector: SilverStripe\CMS\Controllers\OldPageRedirector
-  RootURLController: SilverStripe\CMS\Controllers\RootURLController
-  SilverStripeNavigator: SilverStripe\CMS\Controllers\SilverStripeNavigator
-  SilverStripeNavigatorItem: SilverStripe\CMS\Controllers\SilverStripeNavigatorItem
-  SilverStripeNavigatorItem_CMSLink: SilverStripe\CMS\Controllers\SilverStripeNavigatorItem_CMSLink
-  SilverStripeNavigatorItem_StageLink: SilverStripe\CMS\Controllers\SilverStripeNavigatorItem_StageLink
-  SilverStripeNavigatorItem_LiveLink: SilverStripe\CMS\Controllers\SilverStripeNavigatorItem_LiveLink
-  SilverStripeNavigatorItem_ArchiveLink: SilverStripe\CMS\Controllers\SilverStripeNavigatorItem_ArchiveLink
-  SiteTreeURLSegmentField: SilverStripe\CMS\Forms\SiteTreeURLSegmentField
-  SiteTreeURLSegmentField_Readonly: SilverStripe\CMS\Forms\SiteTreeURLSegmentField_Readonly
-  CurrentPageIdentifier: SilverStripe\CMS\Model\CurrentPageIdentifier
-  ErrorPage: SilverStripe\ErrorPage\ErrorPage
-  ErrorPage_Controller: SilverStripe\ErrorPage\ErrorPageController
-  RedirectorPage: SilverStripe\CMS\Model\RedirectorPage
-  RedirectorPage_Controller: SilverStripe\CMS\Model\RedirectorPageController
-  SiteTree: SilverStripe\CMS\Model\SiteTree
-  SiteTreeExtension: SilverStripe\CMS\Model\SiteTreeExtension
-  SiteTreeFileExtension: SilverStripe\CMS\Model\SiteTreeFileExtension
-  SiteTreeFolderExtension: SilverStripe\CMS\Model\SiteTreeFolderExtension
-  SiteTreeLinkTracking: SilverStripe\CMS\Model\SiteTreeLinkTracking
-  SiteTreeLinkTracking_Parser: SilverStripe\CMS\Model\SiteTreeLinkTracking_Parser
-  VirtualPage: SilverStripe\CMS\Model\VirtualPage
-  BrokenFilesReport: SilverStripe\CMS\Reports\BrokenFilesReport
-  SideReport_BrokenFiles: SilverStripe\CMS\Reports\BrokenFilesReport
-  BrokenLinksReport: SilverStripe\CMS\Reports\BrokenLinksReport
-  SideReport_BrokenLinks: SilverStripe\CMS\Reports\BrokenLinksReport
-  BrokenRedirectorPagesReport: SilverStripe\CMS\Reports\BrokenRedirectorPagesReport
-  SideReport_BrokenRedirectorPages: SilverStripe\CMS\Reports\BrokenRedirectorPagesReport
-  BrokenVirtualPagesReport: SilverStripe\CMS\Reports\BrokenVirtualPagesReport
-  SideReport_BrokenVirtualPages: SilverStripe\CMS\Reports\BrokenVirtualPagesReport
-  EmptyPagesReport: SilverStripe\CMS\Reports\EmptyPagesReport
-  SideReport_EmptyPages: SilverStripe\CMS\Reports\EmptyPagesReport
-  RecentlyEditedReport: SilverStripe\CMS\Reports\RecentlyEditedReport
-  SideReport_RecentlyEdited: SilverStripe\CMS\Reports\RecentlyEditedReport
-  ContentControllerSearchExtension: SilverStripe\CMS\Search\ContentControllerSearchExtension
-  SearchForm: SilverStripe\CMS\Search\SearchForm
-  MigrateSiteTreeLinkingTask: SilverStripe\CMS\Tasks\MigrateSiteTreeLinkingTask
-  RemoveOrphanedPagesTask: SilverStripe\CMS\Tasks\RemoveOrphanedPagesTask
-  SiteTreeMaintenanceTask: SilverStripe\CMS\Tasks\SiteTreeMaintenanceTask
-  AssetAdmin: SilverStripe\AssetAdmin\Controller\AssetAdmin
-  AssetTableField: SilverStripe\AssetAdmin\Controller\AssetAdmin
-  CMSAddPageController: SilverStripe\CMS\Controllers\CMSPageAddController
-  CMSBatchActions: SilverStripe\Admin\CMSBatchAction
-  CMSSearch: SilverStripe\CMS\Search\SearchForm
-  ContentControl: SilverStripe\CMS\Controllers\ContentController
-  Permissions: SilverStripe\Security\Permission
-  SITETREE: SilverStripe\CMS\Model\SiteTree
-  CMSMain_left_ss: SilverStripe\CMS\Controllers\CMSMain
-  CMSPageHistoryController_versions_ss: SilverStripe\CMS\Controllers\CMSPageHistoryController
-  CMSPagesController_ContentToolbar_ss: SilverStripe\CMS\Controllers\CMSPageHistoryController
-  CMSSIteTreeFilter_PublishedPages: SilverStripe\CMS\Controllers\CMSSIteTreeFilter_PublishedPages
-  URLSegmentField: SilverStripe\CMS\Forms\SiteTreeURLSegmentField
-  CMSPagesController_Tools_ss: SilverStripe\CMS\Controllers\CMSPagesController
-  LeftAndMain: SilverStripe\Admin\LeftAndMain
-  CMSBatchActionsTest: SilverStripe\CMS\Tests\CMSBatchActionsTest
-  CMSMainTest: SilverStripe\CMS\Tests\CMSMainTest
-  CMSMainTest_ClassA: SilverStripe\CMS\Tests\CMSMainTest_ClassA
-  CMSMainTest_ClassB: SilverStripe\CMS\Tests\CMSMainTest_ClassB
-  CMSMainTest_HiddenClass: SilverStripe\CMS\Tests\CMSMainTest_HiddenClass
-  CMSMainTest_NotRoot: SilverStripe\CMS\Tests\CMSMainTest_NotRoot
-  CMSPageHistoryControllerTest: SilverStripe\CMS\Tests\CMSPageHistoryControllerTest
-  CMSSiteTreeFilterTest: SilverStripe\CMS\Tests\CMSSiteTreeFilterTest
-  CMSTreeTest: SilverStripe\CMS\Tests\CMSTreeTest
-  ContentControllerPermissionsTest: SilverStripe\CMS\Tests\ContentControllerPermissionsTest
-  ContentControllerSearchExtensionTest: SilverStripe\CMS\Tests\ContentControllerSearchExtensionTest
-  ContentControllerTest: SilverStripe\CMS\Tests\ContentControllerTest
-  ContentControllerTest_Page: SilverStripe\CMS\Tests\ContentControllerTest_Page
-  ContentControllerTest_PageController: SilverStripe\CMS\Tests\ContentControllerTest_PageController
-  ContentControllerTestPage: SilverStripe\CMS\Tests\ContentControllerTestPage
-  ContentControllerTestPageController: SilverStripe\CMS\Tests\ContentControllerTestPageController
-  ContentControllerTestPageWithoutController: SilverStripe\CMS\Tests\ContentControllerTestPageWithoutController
-  ModelAsControllerTest: SilverStripe\CMS\Tests\ModelAsControllerTest
-  RootURLControllerTest: SilverStripe\CMS\Tests\RootURLControllerTest
-  SilverStripeNavigatorTest: SilverStripe\CMS\Tests\SilverStripeNavigatorTest
-  SilverStripeNavigatorTest_ProtectedTestItem: SilverStripe\CMS\Tests\SilverStripeNavigatorTest_ProtectedTestItem
-  SilverStripeNavigatorTest_TestItem: SilverStripe\CMS\Tests\SilverStripeNavigatorTest_TestItem
-  FileLinkTrackingTest: SilverStripe\CMS\Tests\FileLinkTrackingTest
-  RedirectorPageTest: SilverStripe\CMS\Tests\RedirectorPageTest
-  RedirectorPageTest_RedirectExtension: SilverStripe\CMS\Tests\RedirectorPageTest_RedirectExtension
-  SiteTreeActionsTest: SilverStripe\CMS\Tests\SiteTreeActionsTest
-  SiteTreeActionsTest_Page: SilverStripe\CMS\Tests\SiteTreeActionsTest_Page
-  SiteTreeBacklinksTest: SilverStripe\CMS\Tests\SiteTreeBacklinksTest
-  SiteTreeBacklinksTest_DOD: SilverStripe\CMS\Tests\SiteTreeBacklinksTest_DOD
-  SiteTreeBrokenLinksTest: SilverStripe\CMS\Tests\SiteTreeBrokenLinksTest
-  SiteTreeHTMLEditorFieldTest: SilverStripe\CMS\Tests\SiteTreeHTMLEditorFieldTest
-  SiteTreeLinkTrackingTest: SilverStripe\CMS\Tests\SiteTreeLinkTrackingTest
-  SiteTreePermissionsTest: SilverStripe\CMS\Tests\SiteTreePermissionsTest
-  SiteTreeTest: SilverStripe\CMS\Tests\SiteTreeTest
-  SiteTreeTest_AdminDenied: SilverStripe\CMS\Tests\SiteTreeTest_AdminDenied
-  SiteTreeTest_AdminDeniedExtension: SilverStripe\CMS\Tests\SiteTreeTest_AdminDeniedExtension
-  SiteTreeTest_ClassA: SilverStripe\CMS\Tests\SiteTreeTest_ClassA
-  SiteTreeTest_ClassB: SilverStripe\CMS\Tests\SiteTreeTest_ClassB
-  SiteTreeTest_ClassC: SilverStripe\CMS\Tests\SiteTreeTest_ClassC
-  SiteTreeTest_ClassCext: SilverStripe\CMS\Tests\SiteTreeTest_ClassCext
-  SiteTreeTest_ClassD: SilverStripe\CMS\Tests\SiteTreeTest_ClassD
-  SiteTreeTest_ClassE: SilverStripe\CMS\Tests\SiteTreeTest_ClassE
-  SiteTreeTest_Conflicted: SilverStripe\CMS\Tests\SiteTreeTest_Conflicted
-  SiteTreeTest_ConflictedController: SilverStripe\CMS\Tests\SiteTreeTest_ConflictedController
-  SiteTreeTest_DataObject: SilverStripe\CMS\Tests\SiteTreeTest_DataObject
-  SiteTreeTest_Extension: SilverStripe\CMS\Tests\SiteTreeTest_Extension
-  SiteTreeTest_ExtensionA: SilverStripe\CMS\Tests\SiteTreeTest_ExtensionA
-  SiteTreeTest_ExtensionB: SilverStripe\CMS\Tests\SiteTreeTest_ExtensionB
-  SiteTreeTest_LegacyControllerName: SilverStripe\CMS\Tests\SiteTreeTest_LegacyControllerName
-  SiteTreeTest_LegacyControllerName_Controller: SilverStripe\CMS\Tests\SiteTreeTest_LegacyControllerName_Controller
-  SiteTreeTest_NotRoot: SilverStripe\CMS\Tests\SiteTreeTest_NotRoot
-  SiteTreeTest_NullHtmlCleaner: SilverStripe\CMS\Tests\SiteTreeTest_NullHtmlCleaner
-  SiteTreeTest_PageNode: SilverStripe\CMS\Tests\SiteTreeTest_PageNode
-  SiteTreeTest_PageNodeController: SilverStripe\CMS\Tests\SiteTreeTest_PageNodeController
-  SiteTreeTest_StageStatusInherit: SilverStripe\CMS\Tests\SiteTreeTest_StageStatusInherit
-  VirtualPageTest: SilverStripe\CMS\Tests\VirtualPageTest
-  VirtualPageTest_ClassA: SilverStripe\CMS\Tests\VirtualPageTest_ClassA
-  VirtualPageTest_ClassAController: SilverStripe\CMS\Tests\VirtualPageTest_ClassAController
-  VirtualPageTest_ClassB: SilverStripe\CMS\Tests\VirtualPageTest_ClassB
-  VirtualPageTest_ClassC: SilverStripe\CMS\Tests\VirtualPageTest_ClassC
-  VirtualPageTest_NotRoot: SilverStripe\CMS\Tests\VirtualPageTest_NotRoot
-  VirtualPageTest_PageExtension: SilverStripe\CMS\Tests\VirtualPageTest_PageExtension
-  VirtualPageTest_PageWithAllowedChildren: SilverStripe\CMS\Tests\VirtualPageTest_PageWithAllowedChildren
-  VirtualPageTest_TestDBField: SilverStripe\CMS\Tests\VirtualPageTest_TestDBField
-  VirtualPageTest_VirtualPageSub: SilverStripe\CMS\Tests\VirtualPageTest_VirtualPageSub
-  CmsReportsTest: SilverStripe\CMS\Tests\CmsReportsTest
-  CMSMainSearchFormTest: SilverStripe\CMS\Tests\CMSMainSearchFormTest
-  ZZZSearchFormTest: SilverStripe\CMS\Tests\ZZZSearchFormTest
-  MigrateSiteTreeLinkingTaskTest: SilverStripe\CMS\Tests\MigrateSiteTreeLinkingTaskTest
-  RemoveOrphanedPagesTaskTest: SilverStripe\CMS\Tests\RemoveOrphanedPagesTaskTest
-excludedPaths:
-  - '*/_config/legacy.yml'
-warnings:
-  methods:
-    'SilverStripe\CMS\Model\SiteTree->getIsAddedToStage()':
-      message: 'Moved to Versioned->isOnDraftOnly()'
-      replacement: 'isOnDraftOnly'
-    'SilverStripe\CMS\Model\SiteTree->getIsModifiedOnStage()':
-      message: 'Moved to Versioned->isModifiedOnDraft()'
-      replacement: 'isModifiedOnDraft'
-    'SilverStripe\CMS\Model\SiteTree->getExistsOnLive()':
-      message: 'Removed in favour of isPublished()'
-      replacement: 'isPublished'
--- a/2
+++ b/2
@ -1,4 +1,4 @@
-Copyright (c) 2016, SilverStripe Ltd.
+Copyright (c) 2016, Silverstripe Ltd.
 All rights reserved.

 Redistribution and use in source and binary forms, with or without
--- a/README.md
+++ b/README.md
@ -7,7 +7,7 @@ PHP Content Management System (CMS), see [http://silverstripe.org](http://silver

 ## Installation

-See [installation instructions](https://docs.silverstripe.org/en/getting_started/installation/).
+See the [getting started documentation](https://docs.silverstripe.org/en/getting_started/).

 ## Bugtracker

--- a/_config.php
+++ b/_config.php
@ -4,7 +4,6 @@ use SilverStripe\Admin\CMSMenu;
 use SilverStripe\CMS\Controllers\CMSMain;
 use SilverStripe\CMS\Controllers\CMSPageAddController;
 use SilverStripe\CMS\Controllers\CMSPageEditController;
-use SilverStripe\CMS\Controllers\CMSPageHistoryController;
 use SilverStripe\CMS\Controllers\CMSPageSettingsController;
 use SilverStripe\CMS\Model\SiteTree;
 use SilverStripe\Core\Manifest\ModuleLoader;
@ -37,8 +36,4 @@ ShortcodeParser::get('default')->register(
 CMSMenu::remove_menu_class(CMSMain::class);
 CMSMenu::remove_menu_class(CMSPageEditController::class);
 CMSMenu::remove_menu_class(CMSPageSettingsController::class);
-if (class_exists(CMSPageHistoryController::class)) {
-    // this class will be removed in CMS 5
-    CMSMenu::remove_menu_class(CMSPageHistoryController::class);
-}
 CMSMenu::remove_menu_class(CMSPageAddController::class);
--- a/_config/legacy.yml
+++ b/_config/legacy.yml
@ -1,8 +0,0 @@
---
-Name: cmslegacy
---
-SilverStripe\ORM\DatabaseAdmin:
-  classname_value_remapping:
-    SiteTree: 'SilverStripe\CMS\Model\SiteTree'
-    RedirectorPage: SilverStripe\CMS\Model\RedirectorPage
-    VirtualPage: SilverStripe\CMS\Model\VirtualPage
--- a/_config/routes.yml
+++ b/_config/routes.yml
@ -5,8 +5,6 @@ After: '#coreroutes'
 SilverStripe\Control\Director:
  rules:
    '': 'SilverStripe\CMS\Controllers\RootURLController'
-    'RemoveOrphanedPagesTask//$Action/$ID/$OtherID': 'SilverStripe\CMS\Tasks\RemoveOrphanedPagesTask'
-    'SiteTreeMaintenanceTask//$Action/$ID/$OtherID': 'SilverStripe\CMS\Tasks\SiteTreeMaintenanceTask'
 ---
 Name: legacycmsroutes
 ---
--- a/_config/version.yml
+++ b/_config/version.yml
@ -1,6 +1,6 @@
 ---
 Name: cmsversion
-After: 'framework/*'
+After: 'framework/coreconfig'
 ---
 SilverStripe\Core\Manifest\VersionProvider:
  modules:
--- a/_legacy/GraphQL/ReadOneResolver.php
+++ b/_legacy/GraphQL/ReadOneResolver.php
@ -1,32 +0,0 @@
-<?php
-
-namespace SilverStripe\CMS\GraphQL;
-
-use GraphQL\Type\Definition\ResolveInfo;
-use SilverStripe\Core\Injector\Injector;
-use SilverStripe\GraphQL\Scaffolding\Scaffolders\CRUD\ReadOne;
-use SilverStripe\GraphQL\Scaffolding\StaticSchema;
-use SilverStripe\ORM\DataList;
-
-if (!class_exists(ReadOne::class)) {
-    return;
-}
-
-/**
- * Shim to make readOnePage work like GraphQL 4
- *
- * @internal Use GraphQL v4
- * @deprecated 4.8..5.0 Use silverstripe/graphql:^4 functionality.
- */
-class ReadOneResolver
-{
-    public static function resolve($obj, array $args, array $context, ResolveInfo $info)
-    {
-        $idKey = StaticSchema::inst()->formatField('ID');
-        $id = $args['filter'][$idKey]['eq'];
-        $readOne = Injector::inst()->createWithArgs(ReadOne::class, ['Page']);
-        unset($args['filter']);
-        $args[$idKey] = $id;
-        return $readOne->resolve($obj, $args, $context, $info);
-    }
-}
--- a/babel.config.json
+++ b/babel.config.json
@ -0,0 +1,6 @@
+{
+  "presets": [
+    "@babel/preset-env",
+    "@babel/preset-react"
+  ]
+}
--- a/client/dist/js/SilverStripeNavigator.js
+++ b/client/dist/js/SilverStripeNavigator.js
@ -1 +1 @@
-!function(e){function t(n){if(r[n])return r[n].exports;var a=r[n]={i:n,l:!1,exports:{}};return e[n].call(a.exports,a,a.exports,t),a.l=!0,a.exports}var r={};t.m=e,t.c=r,t.i=function(e){return e},t.d=function(e,r,n){t.o(e,r)||Object.defineProperty(e,r,{configurable:!1,enumerable:!0,get:n})},t.n=function(e){var r=e&&e.__esModule?function(){return e.default}:function(){return e};return t.d(r,"a",r),r},t.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},t.p="",t(t.s="./client/src/legacy/SilverStripeNavigator.js")}({"./client/src/legacy/SilverStripeNavigator.js":function(e,t,r){"use strict";!function(){function e(e){return document.getElementsByTagName("base")[0].href.replace("http://","").replace(/\//g,"_").replace(/\./g,"_")+e}function t(e){var t=getComputedStyle(e).display;e.style.display="none",e.dataset.__toggle_display=t}function r(e){e.style.display=e.dataset.__toggle_display?e.dataset.__toggle_display:"block"}function n(e){"none"!==getComputedStyle(e).display?t(e):r(e)}var a=document.querySelectorAll("#switchView a.newWindow");if(a.length>0){var i=!0,l=!1,o=void 0;try{for(var u,c=a.values()[Symbol.iterator]();!(i=(u=c.next()).done);i=!0){var f=u.value;!function(t){t.addEventListener("click",function(r){return r.preventDefault(),window.open(t.href,e(t.target)).focus(),!1})}(f)}}catch(e){l=!0,o=e}finally{try{!i&&c.return&&c.return()}finally{if(l)throw o}}}var v=document.getElementById("SilverStripeNavigatorLinkPopup");if(v){var s=document.getElementById("SilverStripeNavigatorLink");s&&s.addEventListener("click",function(e){return e.preventDefault(),n(v),!1});var d=v.querySelectorAll("a.close");if(d.length>0){var y=!0,p=!1,g=void 0;try{for(var S,m=d.values()[Symbol.iterator]();!(y=(S=m.next()).done);y=!0)S.value.addEventListener("click",function(e){return e.preventDefault(),t(v),!1})}catch(e){p=!0,g=e}finally{try{!y&&m.return&&m.return()}finally{if(p)throw g}}}var h=v.querySelectorAll("input");if(h.length>0){var _=!0,w=!1,b=void 0;try{for(var x,E=h.values()[Symbol.iterator]();!(_=(x=E.next()).done);_=!0){var k=x.value;!function(e){e.addEventListener("focus",function(t){e.select()})}(k)}}catch(e){w=!0,b=e}finally{try{!_&&E.return&&E.return()}finally{if(w)throw b}}}}}()}});
+!function(){"use strict";!function(){function e(e){const t=getComputedStyle(e).display;e.style.display="none",e.dataset.__toggle_display=t}const t=document.querySelectorAll("#switchView a.newWindow");if(t.length>0)for(const e of t.values())e.addEventListener("click",(function(t){t.preventDefault();var n;return window.open(e.href,(n=e.target,document.getElementsByTagName("base")[0].href.replace("http://","").replace(/\//g,"_").replace(/\./g,"_")+n)).focus(),!1}));const n=document.getElementById("SilverStripeNavigatorLinkPopup");if(n){const t=document.getElementById("SilverStripeNavigatorLink");t&&t.addEventListener("click",(function(t){var o;return t.preventDefault(),o=n,"none"!==getComputedStyle(o).display?e(o):function(e){e.style.display=e.dataset.__toggle_display?e.dataset.__toggle_display:"block"}(o),!1}));const o=n.querySelectorAll("a.close");if(o.length>0)for(const t of o.values())t.addEventListener("click",(function(t){return t.preventDefault(),e(n),!1}));const l=n.querySelectorAll("input");if(l.length>0)for(const e of l.values())e.addEventListener("focus",(function(t){e.select()}))}}()}();
--- a/client/dist/js/TinyMCE_sslink-anchor.js
+++ b/client/dist/js/TinyMCE_sslink-anchor.js
@ -1 +1 @@
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+!function(){"use strict";var e={964:function(e,t){Object.defineProperty(t,"__esModule",{value:!0}),t.default=void 0;t.default={ANCHORSELECTOR_CURRENT_FIELD:"ANCHORSELECTOR_CURRENT_FIELD",ANCHORSELECTOR_UPDATED:"ANCHORSELECTOR_UPDATED",ANCHORSELECTOR_UPDATING:"ANCHORSELECTOR_UPDATING",ANCHORSELECTOR_UPDATE_FAILED:"ANCHORSELECTOR_UPDATE_FAILED"}},447:function(e,t,n){Object.defineProperty(t,"__esModule",{value:!0}),t.beginUpdating=function(e){return{type:i.default.ANCHORSELECTOR_UPDATING,payload:{pageId:e}}},t.updateFailed=function(e){return{type:i.default.ANCHORSELECTOR_UPDATE_FAILED,payload:{pageId:e}}},t.updated=function(e,t){let n=arguments.length>2&&void 0!==arguments[2]&&arguments[2];return{type:i.default.ANCHORSELECTOR_UPDATED,payload:{pageId:e,anchors:t,cacheResult:n}}},t.updatedCurrentField=function(e,t,n){return{type:i.default.ANCHORSELECTOR_CURRENT_FIELD,payload:{pageId:e,anchors:t,fieldID:n}}};var r,i=(r=n(964))&&r.__esModule?r:{default:r}},939:function(e){e.exports=ApolloClient},648:function(e){e.exports=Injector},595:function(e){e.exports=InsertLinkModal},363:function(e){e.exports=React},691:function(e){e.exports=ReactDomClient},624:function(e){e.exports=ReactRedux},265:function(e){e.exports=ShortcodeSerialiser},196:function(e){e.exports=TinyMCEActionRegistrar},754:function(e){e.exports=i18n},311:function(e){e.exports=jQuery}},t={};function n(r){var i=t[r];if(void 0!==i)return i.exports;var o=t[r]={exports:{}};return e[r](o,o.exports,n),o.exports}!function(){var e=p(n(754)),t=p(n(196)),r=p(n(363)),i=n(691),o=n(939),a=n(624),d=p(n(311)),l=p(n(265)),s=n(595),u=n(648),c=n(447);function p(e){return e&&e.__esModule?e:{default:e}}const f="sslinkanchor";t.default.addAction("sslink",{text:e.default._t("CMS.LINKLABEL_ANCHOR","Anchor on a page"),onAction:e=>e.execCommand(f),priority:60},editorIdentifier).addCommandWithUrlTest(f,/^\[sitetree_link.+]#[^#\]]+$/);const E={init(e){e.addCommand(f,(()=>{const t=(0,d.default)(`#${e.id}`).entwine("ss"),n=Number((0,d.default)("#Form_EditForm_ID").val()||0),r=(0,d.default)(e.getBody()).find("[id],[name]").toArray().map((e=>e.id||e.name));ss.store.dispatch((0,c.updatedCurrentField)(n,r,e.id)),t.openLinkAnchorDialog()}))}},A="insert-link__dialog-wrapper--anchor",C=(0,u.provideInjector)((0,s.createInsertLinkModal)("SilverStripe\\CMS\\Controllers\\CMSPageEditController","editorAnchorLink"));d.default.entwine("ss",(t=>{t("textarea.htmleditor").entwine({openLinkAnchorDialog(){let e=t(`#${A}`);e.length||(e=t(`<div id="${A}" />`),t("body").append(e)),e.addClass("insert-link__dialog-wrapper"),e.setElement(this),e.open()}}),t(`#${A}`).entwine({ReactRoot:null,renderModal(n){var d=this;const l=ss.store,s=ss.apolloClient,u=this.getOriginalAttributes(),c=this.getRequireLinkText(),p=Number(t("#Form_EditForm_ID").val()||0);let f=this.getReactRoot();f||(f=(0,i.createRoot)(this[0]),this.setReactRoot(f)),f.render(r.default.createElement(o.ApolloProvider,{client:s},r.default.createElement(a.Provider,{store:l},r.default.createElement(C,{isOpen:n,onInsert:function(){return d.handleInsert(...arguments)},onClosed:()=>this.close(),title:e.default._t("CMS.LINK_ANCHOR","Link to an anchor on a page"),bodyClassName:"modal__dialog",className:"insert-link__dialog-wrapper--anchor",fileAttributes:u,identifier:"Admin.InsertLinkAnchorModal",requireLinkText:c,currentPageID:p}))))},buildAttributes(e){return{href:`${l.default.serialise({name:"sitetree_link",properties:{id:e.PageID}},!0)}${e.Anchor&&e.Anchor.length?`#${e.Anchor}`:""}`,target:e.TargetBlank?"_blank":"",title:e.Description}},getOriginalAttributes(){const e=this.getElement().getEditor(),n=t(e.getSelectedNode()),r=(n.attr("href")||"").split("#");if(!r[0])return{};const i=l.default.match("sitetree_link",!1,r[0]);return i?{PageID:i.properties.id?parseInt(i.properties.id,10):0,Anchor:r[1]||"",Description:n.attr("title"),TargetBlank:!!n.attr("target")}:{}}})})),tinymce.PluginManager.add(f,(e=>E.init(e)))}()}();
--- a/client/dist/js/TinyMCE_sslink-internal.js
+++ b/client/dist/js/TinyMCE_sslink-internal.js
@ -1 +1 @@
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--- a/client/dist/js/bundle.js
+++ b/client/dist/js/bundle.js
@ -1 +1,48 @@
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input").entwine({onmatch:function(){e(this).attr("checked")&&this.toggle(),this._super()},onunmatch:function(){this._super()},onclick:function(){this.toggle()},toggle:function(){"Internal"==e(this).attr("value")?(e("#Form_EditForm_ExternalURL_Holder").hide(),e("#Form_EditForm_LinkToID_Holder").show(),e("#Form_EditForm_LinkToFile_Holder").hide()):"External"==e(this).attr("value")?(e("#Form_EditForm_ExternalURL_Holder").show(),e("#Form_EditForm_LinkToID_Holder").hide(),e("#Form_EditForm_LinkToFile_Holder").hide()):(e("#Form_EditForm_LinkToFile_Holder").show(),e("#Form_EditForm_ExternalURL_Holder").hide(),e("#Form_EditForm_LinkToID_Holder").hide())}})}))},806:function(e,t,n){var a;((a=n(311))&&a.__esModule?a:{default:a}).default.entwine("ss",(function(e){e(".field.urlsegment:not(.readonly)").entwine({MaxPreviewLength:55,Ellipsis:"...",onmatch:function(){this.find(":text").length&&this.toggleEdit(!1),this.redraw(),this._super()},redraw:function(){var e=this.find(":text"),t=decodeURI(e.data("prefix")+e.val()),n=t;t.length>this.getMaxPreviewLength()&&(n=this.getEllipsis()+t.substr(t.length-this.getMaxPreviewLength(),t.length)),this.find(".URL-link").attr("href",encodeURI(t+e.data("suffix"))).text(n)},toggleEdit:function(e){var t=this.find(":text");this.find(".preview-holder")[e?"hide":"show"](),this.find(".edit-holder")[e?"show":"hide"](),e&&(t.data("origval",t.val()),t.focus())},update:function(){var e=this,t=this.find(":text"),n=t.data("origval"),a=arguments[0],o=a&&""!==a?a:t.val();n!=o?(this.addClass("loading"),this.suggest(o,(function(n){t.val(decodeURIComponent(n.value)),e.toggleEdit(!1),e.removeClass("loading"),e.redraw()}))):(this.toggleEdit(!1),this.redraw())},cancel:function(){var e=this.find(":text");e.val(e.data("origval")),this.toggleEdit(!1)},suggest:function(t,n){var a=this,o=a.find(":text"),i=e.path.parseUrl(a.closest("form").attr("action")),r=i.hrefNoSearch+"/field/"+o.attr("name")+"/suggest/?value="+encodeURIComponent(t);i.search&&(r+="&"+i.search.replace(/^\?/,"")),e.ajax({url:r,success:function(e){n.apply(this,arguments)},error:function(e,t){e.statusText=e.responseText},complete:function(){a.removeClass("loading")}})}}),e(".field.urlsegment .text").entwine({onkeydown:function(e){13===e.keyCode&&(e.preventDefault(),this.closest(".field").update())}}),e(".field.urlsegment .edit").entwine({onclick:function(e){e.preventDefault(),this.closest(".field").toggleEdit(!0)}}),e(".field.urlsegment .update").entwine({onclick:function(e){e.preventDefault(),this.closest(".field").update()}}),e(".field.urlsegment .cancel").entwine({onclick:function(e){e.preventDefault(),this.closest(".field").cancel()}})}))},964:function(e,t){Object.defineProperty(t,"__esModule",{value:!0}),t.default=void 0;t.default={ANCHORSELECTOR_CURRENT_FIELD:"ANCHORSELECTOR_CURRENT_FIELD",ANCHORSELECTOR_UPDATED:"ANCHORSELECTOR_UPDATED",ANCHORSELECTOR_UPDATING:"ANCHORSELECTOR_UPDATING",ANCHORSELECTOR_UPDATE_FAILED:"ANCHORSELECTOR_UPDATE_FAILED"}},447:function(e,t,n){Object.defineProperty(t,"__esModule",{value:!0}),t.beginUpdating=function(e){return{type:o.default.ANCHORSELECTOR_UPDATING,payload:{pageId:e}}},t.updateFailed=function(e){return{type:o.default.ANCHORSELECTOR_UPDATE_FAILED,payload:{pageId:e}}},t.updated=function(e,t){let n=arguments.length>2&&void 0!==arguments[2]&&arguments[2];return{type:o.default.ANCHORSELECTOR_UPDATED,payload:{pageId:e,anchors:t,cacheResult:n}}},t.updatedCurrentField=function(e,t,n){return{type:o.default.ANCHORSELECTOR_CURRENT_FIELD,payload:{pageId:e,anchors:t,fieldID:n}}};var a,o=(a=n(964))&&a.__esModule?a:{default:a}},572:function(e,t,n){Object.defineProperty(t,"__esModule",{value:!0}),t.default=function(){let e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:s,t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;const n=(n,o)=>{const i=t.payload.pageId;return(0,a.default)({pages:[...e.pages.filter((e=>e.id!==i)),{id:i,loadingState:n,anchors:o}].sort(((e,t)=>e.id-t.id))})};switch(t.type){case o.default.ANCHORSELECTOR_UPDATING:return n(i.default.UPDATING,[]);case o.default.ANCHORSELECTOR_UPDATED:{const{anchors:e,cacheResult:a}=t.payload,{SUCCESS:o,DIRTY:r}=i.default;return n(a?o:r,e)}case o.default.ANCHORSELECTOR_CURRENT_FIELD:{const{anchors:e}=t.payload;return n(i.default.FIELD_ONLY,e)}case o.default.ANCHORSELECTOR_UPDATE_FAILED:return n(i.default.FAILED,[]);default:return e}};var a=r(n(752)),o=r(n(964)),i=r(n(892));function r(e){return e&&e.__esModule?e:{default:e}}const s=(0,a.default)({pages:[]})},892:function(e,t){Object.defineProperty(t,"__esModule",{value:!0}),t.default=void 0;t.default={SUCCESS:"SUCCESS",DIRTY:"DIRTY",FIELD_ONLY:"FIELD_ONLY",UPDATING:"UPDATING",FAILED:"FAILED"}},436:function(e,t,n){Object.defineProperty(t,"__esModule",{value:!0}),t.query=t.default=t.config=void 0;var a,o=n(732);const i=((a=n(306))&&a.__esModule?a:{default:a}).default`
+query ReadHistoryViewerPage ($page_id: ID!, $limit: Int!, $offset: Int!) {
+  readOnePage(
+    versioning: {
+      mode: ALL_VERSIONS
+    },
+    filter: {
+      id: { eq: $page_id }
+    }
+  ) {
+    id
+    versions (limit: $limit, offset: $offset, sort: {
+      version: DESC
+    }) {
+      pageInfo {
+        totalCount
+      }
+      nodes {
+        version
+        absoluteLink
+        author {
+          firstName
+          surname
+        }
+        publisher {
+          firstName
+          surname
+        }
+        deleted
+        draft
+        published
+        liveVersion
+        latestDraftVersion
+        lastEdited
+      }
+    }
+  }
+}
+`;t.query=i;const r={options(e){let{recordId:t,limit:n,page:a}=e;return{variables:{limit:n,offset:((a||1)-1)*n,page_id:t},fetchPolicy:"network-only"}},props(e){let{data:{error:t,refetch:n,readOnePage:a,loading:o},ownProps:{actions:i={versions:{}},limit:r,recordId:s}}=e;const l=a||null;return{loading:o||!l,versions:l,graphQLErrors:t&&t.graphQLErrors&&t.graphQLErrors.map((e=>e.message)),actions:{...i,versions:{...l,goToPage(e){n({offset:((e||1)-1)*r,limit:r,page_id:s})}}}}}};t.config=r;var s=(0,o.graphql)(i,r);t.default=s},149:function(e,t,n){Object.defineProperty(t,"__esModule",{value:!0}),t.mutation=t.default=t.config=void 0;var a,o=n(732);const i=((a=n(306))&&a.__esModule?a:{default:a}).default`
+mutation rollbackPage($id:ID!, $toVersion:Int!) {
+  rollbackPage(
+    id: $id
+    toVersion: $toVersion
+  ) {
+    id
+  }
+}
+`;t.mutation=i;const r={props:e=>{let{mutate:t,ownProps:{actions:n}}=e;const a=(e,n)=>t({variables:{id:e,toVersion:n}});return{actions:{...n,rollbackPage:a,revertToVersion:a}}},options:{refetchQueries:["ReadHistoryViewerPage"]}};t.config=r;var s=(0,o.graphql)(i,r);t.default=s},112:function(e,t,n){function a(e){return a="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e},a(e)}Object.defineProperty(t,"__esModule",{value:!0}),t.default=void 0;var o,i=function(e,t){if(!t&&e&&e.__esModule)return e;if(null===e||"object"!==a(e)&&"function"!=typeof e)return{default:e};var n=l(t);if(n&&n.has(e))return n.get(e);var o={},i=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(var r in e)if("default"!==r&&Object.prototype.hasOwnProperty.call(e,r)){var s=i?Object.getOwnPropertyDescriptor(e,r):null;s&&(s.get||s.set)?Object.defineProperty(o,r,s):o[r]=e[r]}o.default=e,n&&n.set(e,o);return o}(n(363)),r=(o=n(86))&&o.__esModule?o:{default:o},s=n(127);function l(e){if("function"!=typeof WeakMap)return null;var t=new WeakMap,n=new WeakMap;return(l=function(e){return e?n:t})(e)}function d(){return d=Object.assign||function(e){for(var t=1;t<arguments.length;t++){var n=arguments[t];for(var a in n)Object.prototype.hasOwnProperty.call(n,a)&&(e[a]=n[a])}return e},d.apply(this,arguments)}var u=function(e){var t=e.onClose,n=e.message,a=e.title,o=e.confirmText,r=e.cancelText,l=e.confirmColor,u=e.cancelColor,c=e.className,f=e.buttonsComponent,p=e.size,h=e.bodyComponent,m=e.modalProps,g=i.default.createElement(i.Fragment,null,r&&i.default.createElement(s.Button,{color:u,onClick:function(){return t(!1)}},r)," ",i.default.createElement(s.Button,{color:l,onClick:function(){return t(!0)}},o));if(f){var v=f;g=i.default.createElement(v,{onClose:t})}var _=h;return i.default.createElement(s.Modal,d({size:p,isOpen:!0,toggle:function(){return t(!1)},className:"reactstrap-confirm ".concat(c)},m),a&&i.default.createElement(s.ModalHeader,{toggle:function(){return t(!1)}},a||null),i.default.createElement(s.ModalBody,null,h?i.default.createElement(_,null):n),i.default.createElement(s.ModalFooter,null,g))};u.defaultProps={message:"Are you sure?",title:"Warning!",confirmText:"Ok",cancelText:"Cancel",confirmColor:"primary",cancelColor:"",className:"",buttonsComponent:null,size:null,bodyComponent:null,modalProps:{}},u.propTypes={onClose:r.default.func.isRequired,message:r.default.node,title:r.default.node,confirmText:r.default.node,cancelText:r.default.node,confirmColor:r.default.string,cancelColor:r.default.string,className:r.default.string,size:r.default.string,buttonsComponent:r.default.func,bodyComponent:r.default.func,modalProps:r.default.object};var c=u;t.default=c},141:function(e,t,n){Object.defineProperty(t,"__esModule",{value:!0}),t.default=void 0;var a=r(n(363)),o=n(394),i=r(n(112));function r(e){return e&&e.__esModule?e:{default:e}}function s(){return s=Object.assign||function(e){for(var t=1;t<arguments.length;t++){var n=arguments[t];for(var a in n)Object.prototype.hasOwnProperty.call(n,a)&&(e[a]=n[a])}return e},s.apply(this,arguments)}var l=function(e){return new Promise((function(t){var n=document.createElement("div");(0,o.render)(a.default.createElement(i.default,s({},e,{onClose:function(e){(0,o.unmountComponentAtNode)(n),n=null,t(e)}})),n)}))};t.default=l},732:function(e){e.exports=ApolloClientReactHoc},752:function(e){e.exports=DeepFreezeStrict},78:function(e){e.exports=EmotionCssCacheProvider},42:function(e){e.exports=FieldHolder},306:function(e){e.exports=GraphQLTag},648:function(e){e.exports=Injector},875:function(e){e.exports=IsomorphicFetch},86:function(e){e.exports=PropTypes},363:function(e){e.exports=React},394:function(e){e.exports=ReactDom},624:function(e){e.exports=ReactRedux},453:function(e){e.exports=ReactSelectCreatable},127:function(e){e.exports=Reactstrap},827:function(e){e.exports=Redux},762:function(e){e.exports=ReduxForm},277:function(e){e.exports=SilverStripeComponent},820:function(e){e.exports=classnames},720:function(e){e.exports=getFormState},754:function(e){e.exports=i18n},311:function(e){e.exports=jQuery},845:function(e){e.exports=ssUrlLib}},t={};function n(a){var o=t[a];if(void 0!==o)return o.exports;var i=t[a]={exports:{}};return e[a](i,i.exports,n),i.exports}n(554),n(649),n(580),n(978),n(907),n(806),n(274)}();
--- a/client/dist/styles/SilverStripeNavigator.css
+++ b/client/dist/styles/SilverStripeNavigator.css
@ -1 +1 @@
-#SilverStripeNavigator{position:fixed;bottom:0;left:0;width:100%;border-top:2px solid #d4d0c8;background-color:#81858d;height:22px}#SilverStripeNavigator *{font-family:Arial,Helvetica,sans-serif;font-size:10px!important}#SilverStripeNavigator .holder{text-align:center;padding-top:4px;padding-left:3px;padding-right:6px;color:#fff;border-top:1px solid #555}#SilverStripeNavigator #logInStatus{float:right}#SilverStripeNavigator #switchView{float:left}#SilverStripeNavigator a{color:#fff;text-decoration:underline}#SilverStripeNavigator a,#SilverStripeNavigator a:hover{background-color:transparent}#SilverStripeNavigator .bottomTabs a{margin-right:8px;text-decoration:underline}#SilverStripeNavigator .bottomTabs a.current{font-weight:700;text-decoration:none}#SilverStripeNavigatorMessage{font-family:Lucida Grande,Verdana,Arial,"sans-serif";position:fixed;z-index:1000;right:20px;top:40px;padding:10px;border-color:#c99;color:#fff;background-color:#c00;border:1px solid #000}#SilverStripeNavigatorLinkPopup{display:none;position:absolute;top:-60px;height:50px;width:350px;left:200px;background-color:#fff;border:1px solid #000;z-index:100;color:#000;padding:5px}#SilverStripeNavigatorLinkPopup input{width:250px}#SilverStripeNavigatorLinkPopup a.close{color:blue;text-align:right;width:80%;border:none!important;cursor:pointer}
+#SilverStripeNavigator{position:fixed;bottom:0;left:0;width:100%;border-top:2px solid #d4d0c8;background-color:#81858d;height:22px}#SilverStripeNavigator *{font-family:Arial,Helvetica,sans-serif;font-size:10px !important}#SilverStripeNavigator .holder{text-align:center;padding-top:4px;padding-left:3px;padding-right:6px;color:#fff;border-top:1px solid #555}#SilverStripeNavigator #logInStatus{float:right}#SilverStripeNavigator #switchView{float:left}#SilverStripeNavigator a{color:#fff;background-color:rgba(0,0,0,0);text-decoration:underline}#SilverStripeNavigator a:hover{background-color:rgba(0,0,0,0)}#SilverStripeNavigator .bottomTabs a{margin-right:8px;text-decoration:underline}#SilverStripeNavigator .bottomTabs a.current{font-weight:bold;text-decoration:none}#SilverStripeNavigatorMessage{font-family:"Lucida Grande",Verdana,Arial,"sans-serif";position:fixed;z-index:1000;right:20px;top:40px;padding:10px;border-color:#c99;color:#fff;background-color:#c00;border:1px solid #000}#SilverStripeNavigatorLinkPopup{display:none;position:absolute;top:-60px;height:50px;width:350px;left:200px;background-color:#fff;border:1px solid #000;z-index:100;color:#000;padding:5px}#SilverStripeNavigatorLinkPopup input{width:250px}#SilverStripeNavigatorLinkPopup a.close{color:blue;text-align:right;width:80%;border:none !important;cursor:pointer}
--- a/client/dist/styles/bundle.css
+++ b/client/dist/styles/bundle.css
@ -1 +1 @@
-#cms-page-history-versions tr.loading{color:#999}#cms-page-history-versions tr.loading td:hover{cursor:none}#cms-page-history-versions td:hover{cursor:pointer}.CMSPageHistoryController{overflow:hidden}.CMSPageHistoryController ins{background-color:#dfd;padding:2px;text-decoration:none}.CMSPageHistoryController del{background-color:#fdd;padding:2px;color:#f44}.CMSPageHistoryController .htmleditorfield.readonly img{max-width:100%;height:auto}.CMSPageHistoryController .cms-content-tools.collapsed{overflow:hidden}#cms-content-listview .cms-tree-expand-trigger,#cms-content-treeview .cms-tree-expand-trigger{display:none}.cms-content-tools #cms-content-treeview .cms-content-toolbar{border-bottom:none;-webkit-box-shadow:none;box-shadow:none;margin-bottom:0}.cms-content-tools #cms-content-treeview .cms-tree-expand-trigger{display:block;float:left;margin:0 0 2px}.cms-content-tools #cms-content-treeview .cms-tree-expand-trigger span.ui-button-text{padding-right:8px}.cms-content-tools #cms-content-treeview .cms-tree .badge{display:none}.cms-content-tools #cms-content-treeview .cms-tree .jstree-clicked>.text>.badge,.cms-content-tools #cms-content-treeview .cms-tree a:hover>.text>.badge{display:inline-block}#cms-content-tools-CMSMain .search-form{right:0}.cms-list .cms-list__item-breadcrumbs{margin-left:21px;margin-bottom:0;font-size:.9em;word-break:break-word}.cms-content-toolbar .view-controls{margin-top:0}.cms-content-toolbar .view-controls .page-view-link{display:inline-block;margin-right:-5px}.cms-content-toolbar .view-controls.view-controls--listview .font-icon-list,.cms-content-toolbar .view-controls.view-controls--treeview .font-icon-tree{display:none}#pages-controller-cms-content,#pages-controller-cms-content+.cms-preview{width:50%}.field.urlsegment .input-group{width:auto;-webkit-flex-wrap:nowrap;flex-wrap:nowrap}.field.urlsegment.loading .form__field-label{background-image:url(data:image/gif;base64,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);background-repeat:no-repeat;background-position:100%;padding-right:20px}.field.urlsegment .URL-link{padding-top:8px;display:inline-block}.field.urlsegment input.text{-webkit-box-flex:0;-webkit-flex:0 1 250px;flex:0 1 250px}.field.urlsegment .input-group-append{z-index:2}.field.urlsegment .input-group-append:last-of-type{z-index:1}.field.urlsegment .input-group-append .btn{margin-top:0;padding-top:.5385rem;padding-bottom:.5385rem}.field.urlsegment .help{margin-left:0}.field.urlsegment .edit-holder{display:none}.field.urlsegment .edit-holder .form__field-description{clear:both}.form__field-update-url{border-radius:0 3px 3px 0;margin-right:0;margin-left:-1px}
+#cms-page-history-versions tr.loading{color:#999}#cms-page-history-versions tr.loading td:hover{cursor:none}#cms-page-history-versions td:hover{cursor:pointer}#cms-content-treeview .cms-tree-expand-trigger,#cms-content-listview .cms-tree-expand-trigger{display:none}.cms-content-tools #cms-content-treeview .cms-content-toolbar{border-bottom:none;box-shadow:none;margin-bottom:0}.cms-content-tools #cms-content-treeview .cms-tree-expand-trigger{display:block;float:left;margin:0 0 2px 0}.cms-content-tools #cms-content-treeview .cms-tree-expand-trigger span.ui-button-text{padding-right:8px}.cms-content-tools #cms-content-treeview .cms-tree .badge{display:none}.cms-content-tools #cms-content-treeview .cms-tree a:hover>.text>.badge,.cms-content-tools #cms-content-treeview .cms-tree .jstree-clicked>.text>.badge{display:inline-block}#cms-content-tools-CMSMain .search-form{right:0}.cms-list .cms-list__item-breadcrumbs{margin-left:21px;margin-bottom:0;font-size:.9em;word-break:break-word}.cms-content-toolbar .view-controls{margin-top:0}.cms-content-toolbar .view-controls .page-view-link{display:inline-block;margin-right:-5px}.cms-content-toolbar .view-controls.view-controls--treeview .font-icon-tree,.cms-content-toolbar .view-controls.view-controls--listview .font-icon-list{display:none}#pages-controller-cms-content,#pages-controller-cms-content+.cms-preview{width:50%}.field.urlsegment .input-group{width:auto;flex-wrap:nowrap}.field.urlsegment.loading .form__field-label{background-image:url(data:image/gif;base64,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);background-repeat:no-repeat;background-position:right center;padding-right:20px}.field.urlsegment .URL-link{padding-top:8px;display:inline-block}.field.urlsegment input.text{flex:0 1 250px}.field.urlsegment .input-group-append{z-index:2}.field.urlsegment .input-group-append:last-of-type{z-index:1}.field.urlsegment .input-group-append .btn{margin-top:0;padding-top:.5385rem;padding-bottom:.5385rem}.field.urlsegment .help{margin-left:0}.field.urlsegment .edit-holder{display:none}.field.urlsegment .edit-holder .form__field-description{clear:both}.form__field-update-url{border-radius:0 3px 3px 0;margin-right:0px;margin-left:-1px}
--- a/client/src/bundles/bundle.js
+++ b/client/src/bundles/bundle.js
@ -2,7 +2,6 @@ require('../legacy/CMSMain.AddForm');
 require('../legacy/CMSMain.EditForm');
 require('../legacy/CMSMain');
 require('../legacy/CMSMain.Tree');
-require('../legacy/CMSPageHistoryController');
 require('../legacy/RedirectorPage');
 require('../legacy/SiteTreeURLSegmentField');

--- a/client/src/components/AnchorSelectorField/AnchorSelectorField.js
+++ b/client/src/components/AnchorSelectorField/AnchorSelectorField.js
@ -8,7 +8,8 @@ import SilverStripeComponent from 'lib/SilverStripeComponent';
 import * as anchorSelectorActions from 'state/anchorSelector/AnchorSelectorActions';
 import anchorSelectorStates from 'state/anchorSelector/AnchorSelectorStates';
 import fieldHolder from 'components/FieldHolder/FieldHolder';
-import { Creatable } from 'react-select';
+import CreatableSelect from 'react-select/creatable';
+import EmotionCssCacheProvider from 'containers/EmotionCssCacheProvider/EmotionCssCacheProvider';
 import getFormState from 'lib/getFormState';
 import classnames from 'classnames';
 import PropTypes from 'prop-types';
@ -117,26 +118,27 @@ class AnchorSelectorField extends SilverStripeComponent {
  }

  render() {
-    const inputProps = {
-      id: this.props.id,
-    };
-    const className = classnames('anchorselectorfield', this.props.extraClass);
+    const { extraClass, CreatableSelectComponent } = this.props;
+    const className = classnames('anchorselectorfield', extraClass);
    const options = this.getDropdownOptions();
-    const value = this.props.value || '';
+    const rawValue = this.props.value || '';
    const placeholder = i18n._t('CMS.ANCHOR_SELECT_OR_TYPE', 'Select or enter anchor');
    return (
-      <Creatable
-        searchable
-        options={options}
-        className={className}
-        name={this.props.name}
-        inputProps={inputProps}
-        onChange={this.handleChange}
-        onBlurResetsInput
-        value={value}
-        placeholder={placeholder}
-        labelKey="value"
-      />
+      <EmotionCssCacheProvider>
+        <CreatableSelectComponent
+          isSearchable
+          isClearable
+          options={options}
+          className={className}
+          name={this.props.name}
+          onChange={this.handleChange}
+          value={{ value: rawValue }}
+          noOptionsMessage={() => i18n._t('CMS.ANCHOR_NO_OPTIONS', 'No options')}
+          placeholder={placeholder}
+          getOptionLabel={({ value }) => value}
+          classNamePrefix="anchorselectorfield"
+        />
+      </EmotionCssCacheProvider>
    );
  }
 }
@ -165,6 +167,7 @@ AnchorSelectorField.defaultProps = {
  extraClass: '',
  onLoadingError: noop,
  attributes: {},
+  CreatableSelectComponent: CreatableSelect
 };

 function mapStateToProps(state, ownProps) {
--- a/client/src/components/AnchorSelectorField/tests/AnchorSelectorField-test.js
+++ b/client/src/components/AnchorSelectorField/tests/AnchorSelectorField-test.js
@ -1,4 +1,9 @@
-/* global jest, describe, beforeEach, it, expect, setTimeout */
+/* global jest, test, describe, beforeEach, it, expect, setTimeout */
+
+import React from 'react';
+import { Component as AnchorSelectorField } from '../AnchorSelectorField';
+import anchorSelectorStates from 'state/anchorSelector/AnchorSelectorStates';
+import { render, screen } from '@testing-library/react';

 jest.mock('isomorphic-fetch', () =>
  () => Promise.resolve({
@ -6,98 +11,119 @@ jest.mock('isomorphic-fetch', () =>
 }));
 jest.mock('i18n');

-import React from 'react';
-import ReactTestUtils from 'react-dom/test-utils';
-import { Component as AnchorSelectorField } from '../AnchorSelectorField';
-import anchorSelectorStates from 'state/anchorSelector/AnchorSelectorStates';
+function makeProps(obj = {}) {
+  return {
+    id: 'Form_Test',
+    name: 'Test',
+    data: {
+      endpoint: 'url-callback',
+    },
+    pageId: 4,
+    anchors: ['anchor1', 'anchor2'],
+    value: 'selectedanchor',
+    loadingState: anchorSelectorStates.SUCCESS,
+    CreatableSelectComponent: ({ options }) => (
+      <div data-testid="test-creatable-select">
+        {options.map(option => <div key={option.value} data-option={option.value}/>)}
+      </div>
+    ),
+    ...obj,
+  };
+}

-describe('AnchorSelectorField', () => {
-  let props = null;
-  let field = null;
-
-  beforeEach(() => {
-    props = {
-      id: 'Form_Test',
-      name: 'Test',
-      data: {
-        endpoint: 'url-callback',
+test('AnchorSelectorField componentDidMount() Loads dirty selectors', async () => {
+  const beginUpdating = jest.fn();
+  render(<AnchorSelectorField {...makeProps({
+    loadingState: anchorSelectorStates.DIRTY,
+    actions: {
+      anchorSelector: {
+        beginUpdating,
+        updated: () => {},
+        updateFailed: () => {},
      },
-      pageId: 4,
-      anchors: ['anchor1', 'anchor2'],
-      value: 'selectedanchor',
-      loadingState: anchorSelectorStates.SUCCESS,
-      actions: {
-        anchorSelector: {
-          beginUpdating: jest.fn(),
-          updated: jest.fn(),
-          updateFailed: jest.fn(),
-        },
-      },
-    };
-  });
-
-  describe('componentDidMount()', () => {
-    it('Loads dirty selectors', () => {
-      props.loadingState = anchorSelectorStates.DIRTY;
-      field = ReactTestUtils.renderIntoDocument(<AnchorSelectorField {...props} />);
-      expect(props.actions.anchorSelector.beginUpdating)
-        .toHaveBeenCalledWith(4);
-    });
-    it('Does not load success selectors', () => {
-      props.loadingState = anchorSelectorStates.SUCCESS;
-      field = ReactTestUtils.renderIntoDocument(<AnchorSelectorField {...props} />);
-      expect(props.actions.anchorSelector.beginUpdating)
-        .not
-        .toHaveBeenCalled();
-    });
-  });
-
-  describe('getDropdownOptions()', () => {
-    it('Merges value with page anchors', () => {
-      field = ReactTestUtils.renderIntoDocument(<AnchorSelectorField {...props} />);
-      expect(field.getDropdownOptions()).toEqual([
-        { value: 'selectedanchor' },
-        { value: 'anchor1' },
-        { value: 'anchor2' },
-      ]);
-    });
-  });
-
-  describe('ensurePagesLoaded', () => {
-    it('Triggers loading on dirty', () => {
-      props.loadingState = anchorSelectorStates.DIRTY;
-      field = ReactTestUtils.renderIntoDocument(<AnchorSelectorField {...props} />);
-      return field
-        .ensurePagesLoaded()
-        .then((result) => {
-          expect(props.actions.anchorSelector.beginUpdating)
-            .toHaveBeenCalledWith(4);
-          expect(props.actions.anchorSelector.updated)
-            .toHaveBeenCalledWith(4, ['anchor3', 'anchor4']);
-          expect(props.actions.anchorSelector.updateFailed)
-            .not
-            .toHaveBeenCalled();
-          expect(result).toEqual(['anchor3', 'anchor4']);
-        });
-    });
-
-    it('Does not trigger updating', () => {
-      props.loadingState = anchorSelectorStates.UPDATING;
-      field = ReactTestUtils.renderIntoDocument(<AnchorSelectorField {...props} />);
-      return field
-        .ensurePagesLoaded()
-        .then((result) => {
-          expect(props.actions.anchorSelector.beginUpdating)
-            .not
-            .toHaveBeenCalled();
-          expect(props.actions.anchorSelector.updated)
-            .not
-            .toHaveBeenCalled();
-          expect(props.actions.anchorSelector.updateFailed)
-            .not
-            .toHaveBeenCalled();
-          expect(result).toBe(undefined);
-        });
-    });
-  });
+    },
+  })}
+  />);
+  await screen.findByTestId('test-creatable-select');
+  expect(beginUpdating).toBeCalledWith(4);
+});
+
+test('AnchorSelectorField Merges value with page anchors', async () => {
+  const beginUpdating = jest.fn();
+  const { container } = render(<AnchorSelectorField {...makeProps({
+    loadingState: anchorSelectorStates.DIRTY,
+    actions: {
+      anchorSelector: {
+        beginUpdating,
+        updated: () => {},
+        updateFailed: () => {},
+      },
+    },
+  })}
+  />);
+  const select = await screen.findByTestId('test-creatable-select');
+  const options = select.querySelectorAll('[data-option]');
+  expect(options).toHaveLength(3);
+  expect(options[0].getAttribute('data-option')).toBe('selectedanchor');
+  expect(options[1].getAttribute('data-option')).toBe('anchor1');
+  expect(options[2].getAttribute('data-option')).toBe('anchor2');
+});
+
+test('AnchorSelectorField componentDidMount() Does not load success selectors', async () => {
+  const beginUpdating = jest.fn();
+  render(<AnchorSelectorField {...makeProps({
+    loadingState: anchorSelectorStates.SUCCESS,
+    actions: {
+      anchorSelector: {
+        beginUpdating,
+        updated: () => {},
+        updateFailed: () => {},
+      },
+    },
+  })}
+  />);
+  await screen.findByTestId('test-creatable-select');
+  expect(beginUpdating).not.toBeCalled();
+});
+
+test('AnchorSelectorField ensurePagesLoaded Triggers loading on dirty', async () => {
+  const beginUpdating = jest.fn();
+  const updated = jest.fn();
+  const updateFailed = jest.fn();
+  render(<AnchorSelectorField {...makeProps({
+    loadingState: anchorSelectorStates.DIRTY,
+    actions: {
+      anchorSelector: {
+        beginUpdating,
+        updated,
+        updateFailed,
+      },
+    },
+  })}
+  />);
+  await screen.findByTestId('test-creatable-select');
+  expect(beginUpdating).toBeCalledWith(4);
+  expect(updated).toBeCalledWith(4, ['anchor3', 'anchor4']);
+  expect(updateFailed).not.toBeCalled();
+});
+
+test('AnchorSelectorField ensurePagesLoaded Does not trigger updating', async () => {
+  const beginUpdating = jest.fn();
+  const updated = jest.fn();
+  const updateFailed = jest.fn();
+  render(<AnchorSelectorField {...makeProps({
+    loadingState: anchorSelectorStates.UPDATING,
+    actions: {
+      anchorSelector: {
+        beginUpdating,
+        updated,
+        updateFailed,
+      },
+    },
+  })}
+  />);
+  await screen.findByTestId('test-creatable-select');
+  expect(beginUpdating).not.toBeCalled();
+  expect(updated).not.toBeCalled();
+  expect(updateFailed).not.toBeCalled();
 });
--- a/client/src/legacy/CMSMain.EditForm.js
+++ b/client/src/legacy/CMSMain.EditForm.js
@ -3,7 +3,7 @@
 */
 import $ from 'jquery';
 import i18n from 'i18n';
-import reactConfirm from "@silverstripe/reactstrap-confirm";
+import reactConfirm from 'reactstrap-confirm';

 $.entwine('ss', function($){
 	/**
@ -497,12 +497,13 @@ $.entwine('ss', function($){
        'By changing the URL segment visitors will not be able to view it.'
      );

-      if (await reactConfirm(message, {
+      if (await reactConfirm({
        title: i18n._t(
          'CMS.RemoveHomePageWarningTitle',
          'Remove your home page?'
        ),
-        confirmLabel: i18n._t(
+        message,
+        confirmText: i18n._t(
          'CMS.RemoveHomePageWarningLabel',
          'Remove'
        ),
--- a/client/src/legacy/CMSMain.Tree.js
+++ b/client/src/legacy/CMSMain.Tree.js
@ -1,6 +1,7 @@
 import $ from 'jquery';
 import i18n from 'i18n';
-import reactConfirm from "@silverstripe/reactstrap-confirm";
+import reactConfirm from 'reactstrap-confirm';
+import { joinUrlPaths } from 'lib/urls';

 $.entwine('ss.tree', function($) {
  $('.cms-tree').entwine({
@ -45,7 +46,7 @@ $.entwine('ss.tree', function($) {
      });

      const baseUrl = $('base').attr('href') || ''; // Edge17 and IE11 require absolute paths
-      window.location.assign(baseUrl + urlWithParams);
+      window.location.assign(joinUrlPaths(baseUrl, urlWithParams));
    },

    getTreeConfig: function() {
@ -168,12 +169,13 @@ $.entwine('ss.tree', function($) {
        'By changing the URL segment visitors will not be able to view it.'
      );

-      return await reactConfirm(message, {
+      return await reactConfirm({
        title: i18n._t(
          'CMS.RemoveHomePageWarningTitle',
          'Remove your home page?'
        ),
-        confirmLabel: i18n._t(
+        message,
+        confirmText: i18n._t(
          'CMS.RemoveHomePageWarningLabel',
          'Remove'
        ),
--- a/client/src/legacy/CMSMain.js
+++ b/client/src/legacy/CMSMain.js
@ -1,4 +1,5 @@
 import $ from 'jquery';
+import { joinUrlPaths } from 'lib/urls';

 /**
 * Behaviour for the CMS Content Toolbar.
@ -81,7 +82,7 @@ $.entwine('ss', function ($) {
      localStorage.setItem('ss.pages-view-type', viewType);
      if(isContentViewInSidebar && viewType === VIEW_TYPE_LIST) {
        const baseUrl = $('base').attr('href') || '';  // Edge17 and IE11 need absolute path
-        window.location.assign(baseUrl + $contentView.data('url-listviewroot'));
+        window.location.assign(joinUrlPaths(baseUrl, $contentView.data('url-listviewroot')));

        return;
      }
--- a/client/src/legacy/CMSPageHistoryController.js
+++ b/client/src/legacy/CMSPageHistoryController.js
@ -1,183 +0,0 @@
-import $ from 'jquery';
-import i18n from 'i18n';
-
-/**
- * File: CMSPageHistoryController.js
- *
- * Handles related interactions between the version selection form on the
- * left hand side of the panel and the version displaying on the right
- * hand side.
- */
-$.entwine('ss', ($) => { // eslint-disable-line no-shadow
-  /**
-   * Class: #Form_VersionsForm
-   *
-   * The left hand side version selection form is the main interface for
-   * users to select a version to view, or to compare two versions
-   */
-  $('#Form_VersionsForm').entwine({
-    /**
-     * Constructor
-     */
-    onmatch() {
-      this._super();
-    },
-    onunmatch() {
-      this._super();
-    },
-    /**
-     * Function: submit.
-     *
-     * Submits either the compare versions form or the view single form
-     * display based on whether we have two or 1 option selected
-     *
-     * Todo:
-     *    Handle coupling to admin url
-     */
-    onsubmit(e) {
-      e.preventDefault();
-      const id = this.find(':input[name=ID]').val();
-
-      if (!id) {
-        return false;
-      }
-
-      let url = null;
-      let to = null;
-      let from = null;
-
-      const compare = (this.find(':input[name=CompareMode]').is(':checked'));
-      const selected = this.find('table input[type=checkbox]').filter(':checked');
-
-      if (compare) {
-        if (selected.length !== 2) {
-          return false;
-        }
-
-        to = selected.eq(0).val();
-        from = selected.eq(1).val();
-        url = i18n.sprintf(this.data('linkTmplCompare'), id, from, to);
-      } else {
-        to = selected.eq(0).val();
-        url = i18n.sprintf(this.data('linkTmplShow'), id, to);
-      }
-
-      $('.cms-container').loadPanel(url, '', { pjax: 'CurrentForm' });
-      return true;
-    },
-  });
-
-  /**
-   * Class: :input[name=ShowUnpublished]
-   *
-   * Used for toggling whether to show or hide unpublished versions.
-   */
-  $('#Form_VersionsForm input[name=ShowUnpublished]').entwine({
-    onmatch() {
-      this.toggle();
-      this._super();
-    },
-    onunmatch() {
-      this._super();
-    },
-    /**
-     * Event: :input[name=ShowUnpublished] change
-     *
-     * Changing the show unpublished checkbox toggles whether to show
-     * or hide the unpublished versions. Because those rows may be being
-     * compared this also ensures those rows are unselected.
-     */
-    onchange() {
-      this.toggle();
-    },
-    toggle() {
-      const self = $(this);
-      const unpublished = self.parents('form').find('tr[data-published=false]');
-
-      if (self.attr('checked')) {
-        unpublished
-          .removeClass('ui-helper-hidden')
-          .show();
-      } else {
-        unpublished
-          .addClass('ui-helper-hidden')
-          .hide()
-          ._unselect();
-      }
-    },
-  });
-
-  /**
-   * Class: #Form_VersionsForm tr
-   *
-   * An individual row in the versions form. Selecting the row updates
-   * the edit form depending on whether we're showing individual version
-   * information or displaying comparsion.
-   */
-  $('#Form_VersionsForm tbody tr').entwine({
-
-    /**
-     * Function: onclick
-     *
-     * Selects or deselects the row (if in compare mode). Will trigger
-     * an update of the edit form if either selected (in single mode)
-     * or if this is the second row selected (in compare mode)
-     */
-    onclick() {
-      // compare mode
-      const compare = this.parents('form').find(':input[name=CompareMode]').attr('checked');
-      const selected = this.siblings('.active');
-
-      if (compare && this.hasClass('active')) {
-        this._unselect();
-        return;
-      }
-
-      if (compare) {
-        // check if we have already selected more than two.
-        if (selected.length > 1) {
-          // eslint-disable-next-line no-alert
-          alert(i18n._t('CMS.ONLYSELECTTWO', 'You can only compare two versions at this time.'));
-          return;
-        }
-
-        this._select();
-
-        // if this is the second selected then we can compare.
-        if (selected.length === 1) {
-          this.parents('form').submit();
-        }
-        return;
-      }
-      this._select();
-      selected._unselect();
-      this.parents('form').submit();
-    },
-
-    /**
-     * Function: _unselect()
-     *
-     * Unselects the row from the form selection.
-     *
-     * Using regular js to update the class rather than this.removeClass('active')
-     * because the latter causes the browser to continuously call
-     * element.compareDocumentPosition, causing the browser to hang for long
-     * periods of time, especially on pages with lots of versions (e.g. 100+)
-     */
-    _unselect() {
-      this.get(0).classList.remove('active');
-      this.find(':input[type=checkbox][checked]').attr('checked', false);
-    },
-
-    /**
-     * Function: _select()
-     *
-     * Selects the currently matched row in the form selection
-     */
-    _select() {
-      this.addClass('active');
-      this.find(':input[type=checkbox]').attr('checked', true);
-    },
-
-  });
-});
--- a/client/src/legacy/TinyMCE_sslink-anchor.js
+++ b/client/src/legacy/TinyMCE_sslink-anchor.js
@ -2,8 +2,8 @@
 import i18n from 'i18n';
 import TinyMCEActionRegistrar from 'lib/TinyMCEActionRegistrar';
 import React from 'react';
-import ReactDOM from 'react-dom';
-import { ApolloProvider } from 'react-apollo';
+import { createRoot } from 'react-dom/client';
+import { ApolloProvider } from '@apollo/client';
 import { Provider } from 'react-redux';
 import jQuery from 'jquery';
 import ShortcodeSerialiser from 'lib/ShortcodeSerialiser';
@ -19,7 +19,7 @@ TinyMCEActionRegistrar
    'sslink',
    {
      text: i18n._t('CMS.LINKLABEL_ANCHOR', 'Anchor on a page'),
-      onclick: (activeEditor) => activeEditor.execCommand(commandName),
+      onAction: (activeEditor) => activeEditor.execCommand(commandName),
      priority: 60,
    },
    editorIdentifier,
@ -32,8 +32,8 @@ const plugin = {
      const field = jQuery(`#${editor.id}`).entwine('ss');
      // Get the anchors in the current field and save them as props for AnchorSelectorField
      const currentPageID = Number(jQuery('#Form_EditForm_ID').val() || 0);
-      const validTargets = editor
-        .$('[id],[name]', editor.getBody())
+      const validTargets = jQuery(editor.getBody())
+        .find('[id],[name]')
        .toArray()
        .map((element) => element.id || element.name);
      ss.store.dispatch(updatedCurrentField(currentPageID, validTargets, editor.id));
@ -68,6 +68,8 @@ jQuery.entwine('ss', ($) => {
   * Assumes that $('.insert-link__dialog-wrapper').entwine({}); is defined for shared functions
   */
  $(`#${modalId}`).entwine({
+    ReactRoot: null,
+
    renderModal(isOpen) {
      const store = ss.store;
      const client = ss.apolloClient;
@ -78,7 +80,12 @@ jQuery.entwine('ss', ($) => {
      const currentPageID = Number($('#Form_EditForm_ID').val() || 0);

      // create/update the react component
-      ReactDOM.render(
+      let root = this.getReactRoot();
+      if (!root) {
+        root = createRoot(this[0]);
+        this.setReactRoot(root);
+      }
+      root.render(
        <ApolloProvider client={client}>
          <Provider store={store}>
            <InsertLinkInternalModal
@ -94,8 +101,7 @@ jQuery.entwine('ss', ($) => {
              currentPageID={currentPageID}
            />
          </Provider>
-        </ApolloProvider>,
-        this[0]
+        </ApolloProvider>
      );
    },

--- a/client/src/legacy/TinyMCE_sslink-internal.js
+++ b/client/src/legacy/TinyMCE_sslink-internal.js
@ -2,8 +2,8 @@
 import i18n from 'i18n';
 import TinyMCEActionRegistrar from 'lib/TinyMCEActionRegistrar';
 import React from 'react';
-import ReactDOM from 'react-dom';
-import { ApolloProvider } from 'react-apollo';
+import { createRoot } from 'react-dom/client';
+import { ApolloProvider } from '@apollo/client';
 import { Provider } from 'react-redux';
 import jQuery from 'jquery';
 import ShortcodeSerialiser from 'lib/ShortcodeSerialiser';
@ -18,7 +18,7 @@ TinyMCEActionRegistrar
    'sslink',
    {
      text: i18n._t('CMS.LINKLABEL_PAGE', 'Page on this site'),
-      onclick: (activeEditor) => activeEditor.execCommand(commandName),
+      onAction: (activeEditor) => activeEditor.execCommand(commandName),
      priority: 90,
    },
    editorIdentifier,
@ -60,6 +60,8 @@ jQuery.entwine('ss', ($) => {
   * Assumes that $('.insert-link__dialog-wrapper').entwine({}); is defined for shared functions
   */
  $(`#${modalId}`).entwine({
+    ReactRoot: null,
+
    renderModal(isOpen) {
      const store = ss.store;
      const client = ss.apolloClient;
@ -69,7 +71,12 @@ jQuery.entwine('ss', ($) => {
      const requireLinkText = this.getRequireLinkText();

      // create/update the react component
-      ReactDOM.render(
+      let root = this.getReactRoot();
+      if (!root) {
+        root = createRoot(this[0]);
+        this.setReactRoot(root);
+      }
+      root.render(
        <ApolloProvider client={client}>
          <Provider store={store}>
            <InsertLinkInternalModal
@ -84,8 +91,7 @@ jQuery.entwine('ss', ($) => {
              requireLinkText={requireLinkText}
            />
          </Provider>
-        </ApolloProvider>,
-        this[0]
+        </ApolloProvider>
      );
    },

--- a/client/src/state/history/readOnePageQuery.js
+++ b/client/src/state/history/readOnePageQuery.js
@ -1,4 +1,4 @@
-import { graphql } from 'react-apollo';
+import { graphql } from '@apollo/client/react/hoc';
 import gql from 'graphql-tag';

 // GraphQL query for retrieving the version history of a specific page. The
--- a/client/src/state/history/revertToPageVersionMutation.js
+++ b/client/src/state/history/revertToPageVersionMutation.js
@ -1,4 +1,4 @@
-import { graphql } from 'react-apollo';
+import { graphql } from '@apollo/client/react/hoc';
 import gql from 'graphql-tag';

 const mutation = gql`
--- a/client/src/state/history/rollbackPageMutation.js
+++ b/client/src/state/history/rollbackPageMutation.js
@ -1,4 +1,4 @@
-import { graphql } from 'react-apollo';
+import { graphql } from '@apollo/client/react/hoc';
 import gql from 'graphql-tag';

 const mutation = gql`
--- a/client/src/styles/legacy/_CMSMain.scss
+++ b/client/src/styles/legacy/_CMSMain.scss
@ -30,31 +30,6 @@
 	}
 }

-.CMSPageHistoryController {
-	overflow: hidden; // Fixes weird bug for double scroll in history area on browser resize
-
-	ins {
-		background-color: #DFD;
-		padding: 2px;
-		text-decoration: none;
-	}
-
-	del {
-		background-color: #FDD;
-		padding: 2px;
-		color: darken(#FDD, 30%);
-	}
-
-  .htmleditorfield.readonly img {
-    max-width: 100%;
-    height: auto;
-  }
-
-	.cms-content-tools.collapsed {
-		overflow: hidden;
-	}
-}
-
 /** --------------------------------------------
 * Tree View (collapsed for sidebar)
 * -------------------------------------------- */
--- a/code/BatchActions/CMSBatchAction_Archive.php
+++ b/code/BatchActions/CMSBatchAction_Archive.php
@ -4,6 +4,7 @@ namespace SilverStripe\CMS\BatchActions;

 use SilverStripe\ORM\SS_List;
 use SilverStripe\Admin\CMSBatchAction;
+use SilverStripe\Control\HTTPResponse;

 /**
 * Delete items batch action.
@ -15,7 +16,7 @@ class CMSBatchAction_Archive extends CMSBatchAction
        return _t(__CLASS__ . '.TITLE', 'Unpublish and archive');
    }

-    public function run(SS_List $pages)
+    public function run(SS_List $pages): HTTPResponse
    {
        return $this->batchaction(
            $pages,
--- a/code/BatchActions/CMSBatchAction_Publish.php
+++ b/code/BatchActions/CMSBatchAction_Publish.php
@ -3,6 +3,7 @@
 namespace SilverStripe\CMS\BatchActions;

 use SilverStripe\Admin\CMSBatchAction;
+use SilverStripe\Control\HTTPResponse;
 use SilverStripe\ORM\SS_List;

 /**
@ -15,7 +16,7 @@ class CMSBatchAction_Publish extends CMSBatchAction
        return _t(__CLASS__ . '.PUBLISH_PAGES', 'Publish');
    }

-    public function run(SS_List $pages)
+    public function run(SS_List $pages): HTTPResponse
    {
        return $this->batchaction(
            $pages,
--- a/code/BatchActions/CMSBatchAction_Restore.php
+++ b/code/BatchActions/CMSBatchAction_Restore.php
@ -4,6 +4,7 @@ namespace SilverStripe\CMS\BatchActions;

 use SilverStripe\Admin\CMSBatchAction;
 use SilverStripe\CMS\Model\SiteTree;
+use SilverStripe\Control\HTTPResponse;
 use SilverStripe\ORM\ArrayList;
 use SilverStripe\ORM\SS_List;
 use SilverStripe\Versioned\Versioned;
@ -20,7 +21,7 @@ class CMSBatchAction_Restore extends CMSBatchAction
        return _t(__CLASS__ . '.RESTORE', 'Restore');
    }

-    public function run(SS_List $pages)
+    public function run(SS_List $pages): HTTPResponse
    {
        // Sort pages by depth
        $pageArray = $pages->toArray();
--- a/code/BatchActions/CMSBatchAction_Unpublish.php
+++ b/code/BatchActions/CMSBatchAction_Unpublish.php
@ -3,6 +3,7 @@
 namespace SilverStripe\CMS\BatchActions;

 use SilverStripe\Admin\CMSBatchAction;
+use SilverStripe\Control\HTTPResponse;
 use SilverStripe\ORM\SS_List;

 /**
@ -15,7 +16,7 @@ class CMSBatchAction_Unpublish extends CMSBatchAction
        return _t(__CLASS__ . '.UNPUBLISH_PAGES', 'Unpublish');
    }

-    public function run(SS_List $pages)
+    public function run(SS_List $pages): HTTPResponse
    {
        return $this->batchaction(
            $pages,
--- a/code/Controllers/CMSMain.php
+++ b/code/Controllers/CMSMain.php
@ -2,13 +2,13 @@

 namespace SilverStripe\CMS\Controllers;

-use SilverStripe\Dev\Deprecation;
 use InvalidArgumentException;
 use Psr\SimpleCache\CacheInterface;
 use SilverStripe\Admin\AdminRootController;
 use SilverStripe\Admin\CMSBatchActionHandler;
 use SilverStripe\Admin\LeftAndMain;
 use SilverStripe\Admin\LeftAndMainFormRequestHandler;
+use SilverStripe\Admin\Navigator\SilverStripeNavigator;
 use SilverStripe\CMS\BatchActions\CMSBatchAction_Archive;
 use SilverStripe\CMS\BatchActions\CMSBatchAction_Publish;
 use SilverStripe\CMS\BatchActions\CMSBatchAction_Restore;
@ -23,6 +23,7 @@ use SilverStripe\Control\Director;
 use SilverStripe\Control\HTTPRequest;
 use SilverStripe\Control\HTTPResponse;
 use SilverStripe\Control\HTTPResponse_Exception;
+use SilverStripe\Control\PjaxResponseNegotiator;
 use SilverStripe\Core\Cache\MemberCacheFlusher;
 use SilverStripe\Core\Config\Config;
 use SilverStripe\Core\Convert;
@ -69,10 +70,9 @@ use SilverStripe\SiteConfig\SiteConfig;
 use SilverStripe\Versioned\ChangeSet;
 use SilverStripe\Versioned\ChangeSetItem;
 use SilverStripe\Versioned\Versioned;
+use SilverStripe\VersionedAdmin\Controllers\CMSPageHistoryViewerController;
 use SilverStripe\View\ArrayData;
 use SilverStripe\View\Requirements;
-use Translatable;
-use SilverStripe\VersionedAdmin\Controllers\CMSPageHistoryViewerController;

 /**
 * The main "content" area of the CMS.
@ -107,12 +107,6 @@ class CMSMain extends LeftAndMain implements CurrentPageIdentifier, PermissionPr

    private static $tree_class = SiteTree::class;

-    /**
-     * @deprecated 1.13.0 Do not use this options.
-     * @config
-     */
-    private static $subitem_class = Member::class;
-
    private static $session_namespace = self::class;

    private static $required_permission_codes = 'CMS_ACCESS_CMSMain';
@ -188,11 +182,6 @@ class CMSMain extends LeftAndMain implements CurrentPageIdentifier, PermissionPr

    protected function init()
    {
-        // set reading lang
-        if (SiteTree::has_extension('Translatable') && !$this->getRequest()->isAjax()) {
-            Translatable::choose_site_locale(array_keys(Translatable::get_existing_content_languages(SiteTree::class) ?? []));
-        }
-
        parent::init();

        Requirements::javascript('silverstripe/cms: client/dist/js/bundle.js');
@ -200,7 +189,7 @@ class CMSMain extends LeftAndMain implements CurrentPageIdentifier, PermissionPr
        Requirements::css('silverstripe/cms: client/dist/styles/bundle.css');
        Requirements::customCSS($this->generatePageIconsCss(), self::PAGE_ICONS_ID);

-        Requirements::add_i18n_javascript('silverstripe/cms: client/lang', false, true);
+        Requirements::add_i18n_javascript('silverstripe/cms: client/lang', false);

        CMSBatchActionHandler::register('restore', CMSBatchAction_Restore::class);
        CMSBatchActionHandler::register('archive', CMSBatchAction_Archive::class);
@ -208,7 +197,7 @@ class CMSMain extends LeftAndMain implements CurrentPageIdentifier, PermissionPr
        CMSBatchActionHandler::register('publish', CMSBatchAction_Publish::class);
    }

-    public function index($request)
+    public function index(HTTPRequest $request): HTTPResponse
    {
        // In case we're not showing a specific record, explicitly remove any session state,
        // to avoid it being highlighted in the tree, and causing an edit form to show.
@ -219,7 +208,7 @@ class CMSMain extends LeftAndMain implements CurrentPageIdentifier, PermissionPr
        return parent::index($request);
    }

-    public function getResponseNegotiator()
+    public function getResponseNegotiator(): PjaxResponseNegotiator
    {
        $negotiator = parent::getResponseNegotiator();

@ -414,10 +403,13 @@ class CMSMain extends LeftAndMain implements CurrentPageIdentifier, PermissionPr

    public function LinkPageHistory()
    {
-        if ($id = $this->currentPageID()) {
-            return $this->LinkWithSearch(
-                Controller::join_links(CMSPageHistoryViewerController::singleton()->Link('show'), $id)
-            );
+        $controller = Injector::inst()->get(CMSPageHistoryViewerController::class);
+        if (($id = $this->currentPageID()) && $controller) {
+            if ($controller) {
+                return $this->LinkWithSearch(
+                    Controller::join_links($controller->Link('show'), $id)
+                );
+            }
        } else {
            return null;
        }
@ -664,11 +656,8 @@ class CMSMain extends LeftAndMain implements CurrentPageIdentifier, PermissionPr
    /**
     * Get a subtree underneath the request param 'ID'.
     * If ID = 0, then get the whole tree.
-     *
-     * @param HTTPRequest $request
-     * @return string
     */
-    public function getsubtree($request)
+    public function getsubtree(HTTPRequest $request): HTTPResponse
    {
        $html = $this->getSiteTreeFor(
            $this->config()->get('tree_class'),
@ -683,7 +672,7 @@ class CMSMain extends LeftAndMain implements CurrentPageIdentifier, PermissionPr
        $html = preg_replace('/^[\s\t\r\n]*<ul[^>]*>/', '', $html ?? '');
        $html = preg_replace('/<\/ul[^>]*>[\s\t\r\n]*$/', '', $html ?? '');

-        return $html;
+        return $this->getResponse()->setBody($html);
    }

    /**
@ -691,11 +680,8 @@ class CMSMain extends LeftAndMain implements CurrentPageIdentifier, PermissionPr
     * Similar to {@link getsubtree()}, but doesn't enforce loading
     * all children with the node. Useful to refresh views after
     * state modifications, e.g. saving a form.
-     *
-     * @param HTTPRequest $request
-     * @return HTTPResponse
     */
-    public function updatetreenodes($request)
+    public function updatetreenodes(HTTPRequest $request): HTTPResponse
    {
        $data = [];
        $ids = explode(',', $request->getVar('ids') ?? '');
@ -763,17 +749,15 @@ class CMSMain extends LeftAndMain implements CurrentPageIdentifier, PermissionPr
     * - 'SiblingIDs': Array of all sibling nodes to the moved node (incl. the node itself).
     *   In case of a 'ParentID' change, relates to the new siblings under the new parent.
     *
-     * @param HTTPRequest $request
-     * @return HTTPResponse JSON string with a
     * @throws HTTPResponse_Exception
     */
-    public function savetreenode($request)
+    public function savetreenode(HTTPRequest $request): HTTPResponse
    {
        if (!SecurityToken::inst()->checkRequest($request)) {
-            return $this->httpError(400);
+            $this->httpError(400);
        }
        if (!$this->CanOrganiseSitetree()) {
-            return $this->httpError(
+            $this->httpError(
                403,
                _t(
                    __CLASS__.'.CANT_REORGANISE',
@ -786,14 +770,14 @@ class CMSMain extends LeftAndMain implements CurrentPageIdentifier, PermissionPr
        $id = $request->requestVar('ID');
        $parentID = $request->requestVar('ParentID');
        if (!is_numeric($id) || !is_numeric($parentID)) {
-            return $this->httpError(400);
+            $this->httpError(400);
        }

        // Check record exists in the DB
        /** @var SiteTree $node */
        $node = DataObject::get_by_id($className, $id);
        if (!$node) {
-            return $this->httpError(
+            $this->httpError(
                500,
                _t(
                    __CLASS__.'.PLEASESAVE',
@ -805,7 +789,7 @@ class CMSMain extends LeftAndMain implements CurrentPageIdentifier, PermissionPr
        // Check top level permissions
        $root = $node->getParentType();
        if (($parentID == '0' || $root == 'root') && !SiteConfig::current_site_config()->canCreateTopLevel()) {
-            return $this->httpError(
+            $this->httpError(
                403,
                _t(
                    __CLASS__.'.CANT_REORGANISE',
@ -1000,7 +984,6 @@ class CMSMain extends LeftAndMain implements CurrentPageIdentifier, PermissionPr
        );

        // Create the form
-        /** @skipUpgrade */
        $form = Form::create(
            $this,
            'SearchForm',
@ -1037,7 +1020,7 @@ class CMSMain extends LeftAndMain implements CurrentPageIdentifier, PermissionPr
        return $pageTypes;
    }

-    public function doSearch($data, $form)
+    public function doSearch(array $data, Form $form): HTTPResponse
    {
        return $this->getsubtree($this->getRequest());
    }
@ -1352,8 +1335,9 @@ class CMSMain extends LeftAndMain implements CurrentPageIdentifier, PermissionPr
        }

        // Added in-line to the form, but plucked into different view by LeftAndMain.Preview.js upon load
-        /** @skipUpgrade */
-        if ($record instanceof CMSPreviewable && !$fields->fieldByName('SilverStripeNavigator')) {
+        if (($record instanceof CMSPreviewable || $record->has_extension(CMSPreviewable::class))
+            && !$fields->fieldByName('SilverStripeNavigator')
+        ) {
            $navField = new LiteralField('SilverStripeNavigator', $this->getSilverStripeNavigator());
            $navField->setAllowHTML(true);
            $fields->push($navField);
@ -1404,7 +1388,7 @@ class CMSMain extends LeftAndMain implements CurrentPageIdentifier, PermissionPr
        ]);

        // Announce the capability so the frontend can decide whether to allow preview or not.
-        if ($record instanceof CMSPreviewable) {
+        if ($record instanceof CMSPreviewable || $record->has_extension(CMSPreviewable::class)) {
            $form->addExtraClass('cms-previewable');
        }
        $form->addExtraClass('fill-height flexbox-area-grow');
@ -1560,17 +1544,14 @@ class CMSMain extends LeftAndMain implements CurrentPageIdentifier, PermissionPr
    /**
     * Callback to request the list of page types allowed under a given page instance.
     * Provides a slower but more precise response over SiteTreeHints
-     *
-     * @param HTTPRequest $request
-     * @return HTTPResponse
     */
-    public function childfilter($request)
+    public function childfilter(HTTPRequest $request): HTTPResponse
    {
        // Check valid parent specified
        $parentID = $request->requestVar('ParentID');
        $parent = SiteTree::get()->byID($parentID);
        if (!$parent || !$parent->exists()) {
-            return $this->httpError(404);
+            $this->httpError(404);
        }

        // Build hints specific to this class
@ -1757,12 +1738,9 @@ class CMSMain extends LeftAndMain implements CurrentPageIdentifier, PermissionPr
    /**
     * Save and Publish page handler
     *
-     * @param array $data
-     * @param Form $form
-     * @return HTTPResponse
     * @throws HTTPResponse_Exception
     */
-    public function save($data, $form)
+    public function save(array $data, Form $form): HTTPResponse
    {
        $className = $this->config()->get('tree_class');

@ -1905,12 +1883,9 @@ class CMSMain extends LeftAndMain implements CurrentPageIdentifier, PermissionPr
     *
     * @uses SiteTree->doRevertToLive()
     *
-     * @param array $data
-     * @param Form $form
-     * @return HTTPResponse
     * @throws HTTPResponse_Exception
     */
-    public function revert($data, $form)
+    public function revert(array $data, Form $form): HTTPResponse
    {
        if (!isset($data['ID'])) {
            throw new HTTPResponse_Exception("Please pass an ID in the form content", 400);
@ -1958,12 +1933,9 @@ class CMSMain extends LeftAndMain implements CurrentPageIdentifier, PermissionPr
     *
     * @see deletefromlive()
     *
-     * @param array $data
-     * @param Form $form
-     * @return HTTPResponse
     * @throws HTTPResponse_Exception
     */
-    public function delete($data, $form)
+    public function delete(array $data, Form $form): HTTPResponse
    {
        $id = $data['ID'];
        $record = SiteTree::get()->byID($id);
@ -1993,12 +1965,9 @@ class CMSMain extends LeftAndMain implements CurrentPageIdentifier, PermissionPr
    /**
     * Delete this page from both live and stage
     *
-     * @param array $data
-     * @param Form $form
-     * @return HTTPResponse
     * @throws HTTPResponse_Exception
     */
-    public function archive($data, $form)
+    public function archive(array $data, Form $form): HTTPResponse
    {
        $id = $data['ID'];
        /** @var SiteTree $record */
@ -2026,14 +1995,14 @@ class CMSMain extends LeftAndMain implements CurrentPageIdentifier, PermissionPr
        return $this->getResponseNegotiator()->respond($this->getRequest());
    }

-    public function publish($data, $form)
+    public function publish(array $data, Form $form): HTTPResponse
    {
        $data['publish'] = '1';

        return $this->save($data, $form);
    }

-    public function unpublish($data, $form)
+    public function unpublish(array $data, Form $form): HTTPResponse
    {
        $className = $this->config()->get('tree_class');
        /** @var SiteTree $record */
@ -2168,87 +2137,10 @@ class CMSMain extends LeftAndMain implements CurrentPageIdentifier, PermissionPr
        return $this->batchactions()->batchActionList();
    }

-    /**
-     * @deprecated 4.12.0 Use custom logic instead
-     * @param $request
-     * @return HTTPResponse|string|void
-     */
-    public function publishall($request)
-    {
-        Deprecation::notice('4.12.0', 'Use custom logic instead');
-        if (!Permission::check('ADMIN')) {
-            return Security::permissionFailure($this);
-        }
-
-        Environment::increaseTimeLimitTo();
-        Environment::increaseMemoryLimitTo();
-
-        $response = "";
-
-        if (isset($this->requestParams['confirm'])) {
-            // Protect against CSRF on destructive action
-            if (!SecurityToken::inst()->checkRequest($request)) {
-                return $this->httpError(400);
-            }
-
-            $start = 0;
-            $pages = SiteTree::get()->limit("$start,30");
-            $count = 0;
-            while ($pages) {
-                /** @var SiteTree $page */
-                foreach ($pages as $page) {
-                    if ($page && !$page->canPublish()) {
-                        return Security::permissionFailure($this);
-                    }
-
-                    $page->publishRecursive();
-                    $page->destroy();
-                    unset($page);
-                    $count++;
-                    $response .= "<li>$count</li>";
-                }
-                if ($pages->count() > 29) {
-                    $start += 30;
-                    $pages = SiteTree::get()->limit("$start,30");
-                } else {
-                    break;
-                }
-            }
-            $response .= _t(__CLASS__ . '.PUBPAGES', "Done: Published {count} pages", ['count' => $count]);
-        } else {
-            $token = SecurityToken::inst();
-            $fields = new FieldList();
-            $token->updateFieldSet($fields);
-            $tokenField = $fields->first();
-            $tokenHtml = ($tokenField) ? $tokenField->FieldHolder() : '';
-            $publishAllDescription = _t(
-                __CLASS__ . '.PUBALLFUN2',
-                'Pressing this button will do the equivalent of going to every page and pressing "publish".  '
-                . 'It\'s intended to be used after there have been massive edits of the content, such as when '
-                . 'the site was first built. '
-                . 'For large websites, this task might not be able to run through to completion. '
-                . 'In this case, we recommend talking to your developers to create a custom task'
-            );
-            $response .= '<h1>' . _t(__CLASS__ . '.PUBALLFUN', '"Publish All" functionality') . '</h1>
-				<p>' . $publishAllDescription . '</p>
-				<form method="post" action="publishall">
-					<input type="submit" name="confirm" value="'
-                    . _t(__CLASS__ . '.PUBALLCONFIRM', "Please publish every page in the site, copying content stage to live", 'Confirmation button') .'" />'
-                    . $tokenHtml .
-                '</form>';
-        }
-
-        return $response;
-    }
-
    /**
     * Restore a completely deleted page from the SiteTree_versions table.
-     *
-     * @param array $data
-     * @param Form $form
-     * @return HTTPResponse
     */
-    public function restore($data, $form)
+    public function restore(array $data, Form $form): HTTPResponse
    {
        if (!isset($data['ID']) || !is_numeric($data['ID'])) {
            return new HTTPResponse("Please pass an ID in the form content", 400);
@ -2275,7 +2167,7 @@ class CMSMain extends LeftAndMain implements CurrentPageIdentifier, PermissionPr
        return $this->getResponseNegotiator()->respond($this->getRequest());
    }

-    public function duplicate($request)
+    public function duplicate(HTTPRequest $request): HTTPResponse
    {
        // Protect against CSRF on destructive action
        if (!SecurityToken::inst()->checkRequest($request)) {
@ -2319,11 +2211,11 @@ class CMSMain extends LeftAndMain implements CurrentPageIdentifier, PermissionPr
        return new HTTPResponse("CMSMain::duplicate() Bad ID: '$id'", 400);
    }

-    public function duplicatewithchildren($request)
+    public function duplicatewithchildren(HTTPRequest $request): HTTPResponse
    {
        // Protect against CSRF on destructive action
        if (!SecurityToken::inst()->checkRequest($request)) {
-            return $this->httpError(400);
+            $this->httpError(400);
        }
        Environment::increaseTimeLimitTo();
        if (($id = $this->urlParams['ID']) && is_numeric($id)) {
--- a/code/Controllers/CMSPageAddController.php
+++ b/code/Controllers/CMSPageAddController.php
@ -192,12 +192,7 @@ class CMSPageAddController extends CMSPageEditController
        return $form;
    }

-    /**
-     * @param array $data
-     * @param Form $form
-     * @return HTTPResponse
-     */
-    public function doAdd($data, $form)
+    public function doAdd(array $data, Form $form): HTTPResponse
    {
        $className = isset($data['PageType']) ? $data['PageType'] : "Page";
        $parentID = isset($data['ParentID']) ? (int)$data['ParentID'] : 0;
@ -241,7 +236,7 @@ class CMSPageAddController extends CMSPageEditController
        return $this->redirect(Controller::join_links($editController->Link('show'), $record->ID));
    }

-    public function doCancel($data, $form)
+    public function doCancel(array $data, Form $form): HTTPResponse
    {
        return $this->redirect(CMSMain::singleton()->Link());
    }
--- a/code/Controllers/CMSPageEditController.php
+++ b/code/Controllers/CMSPageEditController.php
@ -53,30 +53,27 @@ class CMSPageEditController extends CMSMain

    /**
     * Action handler for adding pages to a campaign
-     *
-     * @param array $data
-     * @param Form $form
-     * @return DBHTMLText|HTTPResponse
     */
-    public function addtocampaign($data, $form)
+    public function addtocampaign(array $data, Form $form): HTTPResponse
    {
        $id = $data['ID'];
        $record = \Page::get()->byID($id);

        $handler = AddToCampaignHandler::create($this, $record);
-        $results = $handler->addToCampaign($record, $data);
-        if (is_null($results)) {
-            return null;
+        $response = $handler->addToCampaign($record, $data);
+        $message = $response->getBody();
+        if (empty($message)) {
+            return $response;
        }

        if ($this->getSchemaRequested()) {
            // Send extra "message" data with schema response
-            $extraData = ['message' => $results];
+            $extraData = ['message' => $message];
            $schemaId = Controller::join_links($this->Link('schema/AddToCampaignForm'), $id);
            return $this->getSchemaResponse($schemaId, $form, null, $extraData);
        }

-        return $results;
+        return $response;
    }

    /**
--- a/code/Controllers/CMSPageHistoryController.php
+++ b/code/Controllers/CMSPageHistoryController.php
@ -1,480 +0,0 @@
-<?php
-
-namespace SilverStripe\CMS\Controllers;
-
-use SilverStripe\Dev\Deprecation;
-use SilverStripe\Admin\LeftAndMainFormRequestHandler;
-use SilverStripe\CMS\Model\SiteTree;
-use SilverStripe\Control\Controller;
-use SilverStripe\Control\HTTPRequest;
-use SilverStripe\Control\HTTPResponse;
-use SilverStripe\Forms\CheckboxField;
-use SilverStripe\Forms\FieldList;
-use SilverStripe\Forms\Form;
-use SilverStripe\Forms\FormAction;
-use SilverStripe\Forms\HiddenField;
-use SilverStripe\Forms\HTMLReadonlyField;
-use SilverStripe\Forms\LiteralField;
-use SilverStripe\Forms\Tab;
-use SilverStripe\ORM\FieldType\DBField;
-use SilverStripe\Versioned\Versioned;
-use SilverStripe\Security\Security;
-use SilverStripe\View\ArrayData;
-use SilverStripe\View\ViewableData;
-
-/**
- * Legacy CMS History controller. This functionality has been moved to the `silverstripe/versioned-admin` module and
- * this class will be removed completly in SilverStripe 5.0.0.
- * @deprecated 4.3.0 Use silverstripe/versioned-admin instead
- */
-class CMSPageHistoryController extends CMSMain
-{
-
-    private static $url_segment = 'pages/history';
-
-    private static $url_rule = '/$Action/$ID/$VersionID/$OtherVersionID';
-
-    private static $url_priority = 42;
-
-    private static $menu_title = 'History';
-
-    private static $required_permission_codes = 'CMS_ACCESS_CMSMain';
-
-    private static $allowed_actions = [
-        'EditForm',
-        'VersionsForm',
-        'CompareVersionsForm',
-        'show',
-        'compare'
-    ];
-
-    private static $url_handlers = [
-        '$Action/$ID/$VersionID/$OtherVersionID' => 'handleAction',
-        'EditForm/$ID/$VersionID' => 'EditForm',
-    ];
-
-    /**
-     * Current version ID for this request. Can be 0 for latest version
-     *
-     * @var int
-     */
-    protected $versionID = null;
-
-    public function __construct()
-    {
-        parent::__construct();
-        Deprecation::withNoReplacement(function () {
-            Deprecation::notice('4.3.0', 'Use silverstripe/versioned-admin instead', Deprecation::SCOPE_CLASS);
-        });
-    }
-
-    public function getResponseNegotiator()
-    {
-        $negotiator = parent::getResponseNegotiator();
-
-        $negotiator->setCallback('CurrentForm', function () {
-            $form = $this->getEditForm();
-            if ($form) {
-                return $form->forTemplate();
-            }
-            return $this->renderWith($this->getTemplatesWithSuffix('_Content'));
-        });
-
-        $negotiator->setCallback('default', function () {
-            return $this->renderWith($this->getViewer('show'));
-        });
-
-        return $negotiator;
-    }
-
-    /**
-     * @param HTTPRequest $request
-     * @return HTTPResponse
-     */
-    public function show($request)
-    {
-        // Record id and version for this request
-        $id = $request->param('ID');
-        $this->setCurrentPageID($id);
-        $versionID = $request->param('VersionID');
-        $this->setVersionID($versionID);
-
-        // Show id
-        $form = $this->getEditForm();
-
-        $negotiator = $this->getResponseNegotiator();
-        $negotiator->setCallback('CurrentForm', function () use ($form) {
-            return $form
-                ? $form->forTemplate()
-                : $this->renderWith($this->getTemplatesWithSuffix('_Content'));
-        });
-        $negotiator->setCallback('default', function () use ($form) {
-            return $this
-                ->customise(['EditForm' => $form])
-                ->renderWith($this->getViewer('show'));
-        });
-
-        return $negotiator->respond($request);
-    }
-
-    /**
-     * @param HTTPRequest $request
-     * @return HTTPResponse
-     */
-    public function compare($request)
-    {
-        $form = $this->CompareVersionsForm(
-            $request->param('VersionID'),
-            $request->param('OtherVersionID')
-        );
-
-        $negotiator = $this->getResponseNegotiator();
-        $negotiator->setCallback('CurrentForm', function () use ($form) {
-            return $form ? $form->forTemplate() : $this->renderWith($this->getTemplatesWithSuffix('_Content'));
-        });
-        $negotiator->setCallback('default', function () use ($form) {
-            return $this->customise(['EditForm' => $form])->renderWith($this->getViewer('show'));
-        });
-
-        return $negotiator->respond($request);
-    }
-
-    public function getSilverStripeNavigator()
-    {
-        $record = $this->getRecord($this->currentPageID(), $this->getRequest()->param('VersionID'));
-        if ($record) {
-            $navigator = new SilverStripeNavigator($record);
-            return $navigator->renderWith($this->getTemplatesWithSuffix('_SilverStripeNavigator'));
-        } else {
-            return false;
-        }
-    }
-
-    /**
-     * @param HTTPRequest $request
-     * @return Form
-     */
-    public function EditForm($request = null)
-    {
-        if ($request) {
-            // Validate VersionID is present
-            $versionID = $request->param('VersionID');
-            if (!isset($versionID)) {
-                $this->httpError(400);
-                return null;
-            }
-            $this->setVersionID($versionID);
-        }
-        return parent::EditForm($request);
-    }
-
-    /**
-     * Returns the read only version of the edit form. Detaches all {@link FormAction}
-     * instances attached since only action relates to revert.
-     *
-     * Permission checking is done at the {@link CMSMain::getEditForm()} level.
-     *
-     * @param int $id ID of the record to show
-     * @param array $fields optional
-     * @param int $versionID
-     * @param int $compareID Compare mode
-     *
-     * @return Form
-     */
-    public function getEditForm($id = null, $fields = null, $versionID = null, $compareID = null)
-    {
-        if (!$id) {
-            $id = $this->currentPageID();
-        }
-        if (!$versionID) {
-            $versionID = $this->getVersionID();
-        }
-
-        $record = $this->getRecord($id, $versionID);
-        if (!$record) {
-            return $this->EmptyForm();
-        }
-
-        // Refresh version ID
-        $versionID = $record->Version;
-        $this->setVersionID($versionID);
-
-        // Get edit form
-        $form = parent::getEditForm($record, $record->getCMSFields());
-        // Respect permission failures from parent implementation
-        if (!($form instanceof Form)) {
-            return $form;
-        }
-
-        // TODO: move to the SilverStripeNavigator structure so the new preview can pick it up.
-        //$nav = new SilverStripeNavigatorItem_ArchiveLink($record);
-
-        $actions = new FieldList(
-            $revert = FormAction::create(
-                'doRollback',
-                _t('SilverStripe\\CMS\\Controllers\\CMSPageHistoryController.REVERTTOTHISVERSION', 'Revert to this version')
-            )
-                ->setUseButtonTag(true)
-                ->addExtraClass('btn-warning font-icon-back-in-time')
-        );
-        $actions->setForm($form);
-        $form->setActions($actions);
-
-        $fields = $form->Fields();
-        $fields->removeByName("Status");
-        $fields->push(new HiddenField("ID"));
-        $fields->push(new HiddenField("Version"));
-
-        $fields = $fields->makeReadonly();
-
-        if ($compareID) {
-            $link = Controller::join_links(
-                $this->Link('show'),
-                $id
-            );
-
-            $view = _t(__CLASS__ . '.VIEW', "view");
-
-            $message = _t(
-                __CLASS__ . '.COMPARINGVERSION',
-                "Comparing versions {version1} and {version2}.",
-                [
-                    'version1' => sprintf('%s (<a href="%s">%s</a>)', $versionID, Controller::join_links($link, $versionID), $view),
-                    'version2' => sprintf('%s (<a href="%s">%s</a>)', $compareID, Controller::join_links($link, $compareID), $view)
-                ]
-            );
-
-            $revert->setReadonly(true);
-        } else {
-            if ($record->isLatestVersion()) {
-                $message = _t(__CLASS__ . '.VIEWINGLATEST', 'Currently viewing the latest version.');
-            } else {
-                $message = _t(
-                    __CLASS__ . '.VIEWINGVERSION',
-                    "Currently viewing version {version}.",
-                    ['version' => $versionID]
-                );
-            }
-        }
-
-        /** @var Tab $mainTab */
-        $mainTab = $fields->fieldByName('Root.Main');
-        $mainTab->unshift(
-            LiteralField::create('CurrentlyViewingMessage', ArrayData::create([
-                'Content' => DBField::create_field('HTMLFragment', $message),
-                'Classes' => 'alert alert-info'
-            ])->renderWith($this->getTemplatesWithSuffix('_notice')))
-        );
-
-        $form->setFields($fields->makeReadonly());
-        $form->loadDataFrom([
-            "ID" => $id,
-            "Version" => $versionID,
-        ]);
-
-        if ($record->isLatestVersion()) {
-            $revert->setReadonly(true);
-        }
-
-        $form->removeExtraClass('cms-content');
-
-        // History form has both ID and VersionID as suffixes
-        $form->setRequestHandler(
-            LeftAndMainFormRequestHandler::create($form, [$id, $versionID])
-        );
-
-        return $form;
-    }
-
-
-    /**
-     * Version select form. Main interface between selecting versions to view
-     * and comparing multiple versions.
-     *
-     * Because we can reload the page directly to a compare view (history/compare/1/2/3)
-     * this form has to adapt to those parameters as well.
-     *
-     * @return Form
-     */
-    public function VersionsForm()
-    {
-        $id = $this->currentPageID();
-        $page = $this->getRecord($id);
-        $versionsHtml = '';
-
-        $action = $this->getRequest()->param('Action');
-        $versionID = $this->getRequest()->param('VersionID');
-        $otherVersionID = $this->getRequest()->param('OtherVersionID');
-
-        $showUnpublishedChecked = 0;
-        $compareModeChecked = ($action == "compare");
-
-        if ($page) {
-            $versions = $page->Versions();
-            $versionID = (!$versionID) ? $page->Version : $versionID;
-
-            if ($versions) {
-                foreach ($versions as $k => $version) {
-                    $active = false;
-
-                    if ($version->Version == $versionID || $version->Version == $otherVersionID) {
-                        $active = true;
-
-                        if (!$version->WasPublished) {
-                            $showUnpublishedChecked = 1;
-                        }
-                    }
-
-                    $version->Active = ($active);
-                }
-            }
-
-            $vd = new ViewableData();
-
-            $versionsHtml = $vd->customise([
-                'Versions' => $versions
-            ])->renderWith($this->getTemplatesWithSuffix('_versions'));
-        }
-
-        $fields = new FieldList(
-            new CheckboxField(
-                'ShowUnpublished',
-                _t('SilverStripe\\CMS\\Controllers\\CMSPageHistoryController.SHOWUNPUBLISHED', 'Show unpublished versions'),
-                $showUnpublishedChecked
-            ),
-            new CheckboxField(
-                'CompareMode',
-                _t('SilverStripe\\CMS\\Controllers\\CMSPageHistoryController.COMPAREMODE', 'Compare mode (select two)'),
-                $compareModeChecked
-            ),
-            new LiteralField('VersionsHtml', $versionsHtml),
-            $hiddenID = new HiddenField('ID', false, "")
-        );
-
-        $form = Form::create(
-            $this,
-            'VersionsForm',
-            $fields,
-            new FieldList()
-        )->setHTMLID('Form_VersionsForm');
-        $form->loadDataFrom($this->getRequest()->requestVars());
-        $hiddenID->setValue($id);
-        $form->unsetValidator();
-
-        $form
-            ->addExtraClass('cms-versions-form') // placeholder, necessary for $.metadata() to work
-            ->setAttribute('data-link-tmpl-compare', Controller::join_links($this->Link('compare'), '%s', '%s', '%s'))
-            ->setAttribute('data-link-tmpl-show', Controller::join_links($this->Link('show'), '%s', '%s'));
-
-        return $form;
-    }
-
-    /**
-     * @param int $versionID
-     * @param int $otherVersionID
-     * @return mixed
-     */
-    public function CompareVersionsForm($versionID, $otherVersionID)
-    {
-        if ($versionID > $otherVersionID) {
-            $toVersion = $versionID;
-            $fromVersion = $otherVersionID;
-        } else {
-            $toVersion = $otherVersionID;
-            $fromVersion = $versionID;
-        }
-
-        if (!$toVersion || !$fromVersion) {
-            return null;
-        }
-
-        $id = $this->currentPageID();
-        /** @var SiteTree $page */
-        $page = SiteTree::get()->byID($id);
-
-        $record = null;
-        if ($page && $page->exists()) {
-            if (!$page->canView()) {
-                return Security::permissionFailure($this);
-            }
-
-            $record = $page->compareVersions($fromVersion, $toVersion);
-        }
-
-        $fromVersionRecord = Versioned::get_version(SiteTree::class, $id, $fromVersion);
-        $toVersionRecord = Versioned::get_version(SiteTree::class, $id, $toVersion);
-
-        if (!$fromVersionRecord) {
-            throw new \Exception("Can't find version $fromVersion of page $id");
-        }
-
-        if (!$toVersionRecord) {
-            throw new \Exception("Can't find version $toVersion of page $id");
-        }
-
-        if (!$record) {
-            return null;
-        }
-        $form = $this->getEditForm($id, null, $fromVersion, $toVersion);
-        $form->setActions(new FieldList());
-        $form->addExtraClass('compare');
-
-        $form->loadDataFrom($record);
-        $form->loadDataFrom([
-            "ID" => $id,
-            "Version" => $fromVersion,
-        ]);
-
-        // Comparison views shouldn't be editable.
-        // As the comparison output is HTML and not valid values for the various field types
-        $readonlyFields = $this->transformReadonly($form->Fields());
-        $form->setFields($readonlyFields);
-
-        return $form;
-    }
-
-    /**
-     * Replace all data fields with HTML readonly fields to display diff
-     *
-     * @param FieldList $fields
-     * @return FieldList
-     */
-    public function transformReadonly(FieldList $fields)
-    {
-        foreach ($fields->dataFields() as $field) {
-            if ($field instanceof HiddenField) {
-                continue;
-            }
-            $newField = $field->castedCopy(HTMLReadonlyField::class);
-            $fields->replaceField($field->getName(), $newField);
-        }
-        return $fields;
-    }
-
-    /**
-     * Set current version ID
-     *
-     * @param int $versionID
-     * @return $this
-     */
-    public function setVersionID($versionID)
-    {
-        $this->versionID = $versionID;
-        return $this;
-    }
-
-    /**
-     * Get current version ID
-     *
-     * @return int
-     */
-    public function getVersionID()
-    {
-        return $this->versionID;
-    }
-
-    public function getTabIdentifier()
-    {
-        return 'history';
-    }
-}
--- a/code/Controllers/ContentController.php
+++ b/code/Controllers/ContentController.php
@ -2,6 +2,7 @@

 namespace SilverStripe\CMS\Controllers;

+use SilverStripe\Admin\Navigator\SilverStripeNavigator;
 use SilverStripe\CMS\Model\SiteTree;
 use SilverStripe\Control\Controller;
 use SilverStripe\Control\Director;
@ -29,7 +30,6 @@ use SilverStripe\View\ArrayData;
 use SilverStripe\View\Parsers\URLSegmentFilter;
 use SilverStripe\View\Requirements;
 use SilverStripe\View\SSViewer;
-use Translatable;

 /**
 * The most common kind of controller; effectively a controller linked to a {@link DataObject}.
@ -175,7 +175,6 @@ class ContentController extends Controller
        }

        // Check page permissions
-        /** @skipUpgrade */
        if ($this->dataRecord && $this->URLSegment != 'Security' && !$this->dataRecord->canView()) {
            Security::permissionFailure($this);
            return;
@ -186,11 +185,9 @@ class ContentController extends Controller
     * This acts the same as {@link Controller::handleRequest()}, but if an action cannot be found this will attempt to
     * fall over to a child controller in order to provide functionality for nested URLs.
     *
-     * @param HTTPRequest $request
-     * @return HTTPResponse
     * @throws HTTPResponse_Exception
     */
-    public function handleRequest(HTTPRequest $request)
+    public function handleRequest(HTTPRequest $request): HTTPResponse
    {
        /** @var SiteTree $child */
        $child = null;
@ -200,11 +197,6 @@ class ContentController extends Controller
        // control to a child controller. This allows for the creation of chains of controllers which correspond to a
        // nested URL.
        if ($action && SiteTree::config()->nested_urls && !$this->hasAction($action)) {
-            // See ModelAdController->getNestedController() for similar logic
-            if (class_exists('Translatable')) {
-                Translatable::disable_locale_filter();
-            }
-
            $filter = URLSegmentFilter::create();

            // look for a page with this URLSegment
@ -213,10 +205,6 @@ class ContentController extends Controller
                // url encode unless it's multibyte (already pre-encoded in the database)
                'URLSegment' => $filter->getAllowMultibyte() ? $action : rawurlencode($action),
            ])->first();
-
-            if (class_exists('Translatable')) {
-                Translatable::enable_locale_filter();
-            }
        }

        // we found a page with this URLSegment.
@ -226,25 +214,6 @@ class ContentController extends Controller

            $response = ModelAsController::controller_for($child)->handleRequest($request);
        } else {
-            // If a specific locale is requested, and it doesn't match the page found by URLSegment,
-            // look for a translation and redirect (see #5001). Only happens on the last child in
-            // a potentially nested URL chain.
-            if (class_exists('Translatable')) {
-                $locale = $request->getVar('locale');
-                if ($locale
-                    && i18n::getData()->validate($locale)
-                    && $this->dataRecord
-                    && $this->dataRecord->Locale != $locale
-                ) {
-                    $translation = $this->dataRecord->getTranslation($locale);
-                    if ($translation) {
-                        $response = new HTTPResponse();
-                        $response->redirect($translation->Link(), 301);
-                        throw new HTTPResponse_Exception($response);
-                    }
-                }
-            }
-
            Director::set_current_page($this->data());

            try {
@ -415,9 +384,6 @@ HTML;

    /**
     * Returns an RFC1766 compliant locale string, e.g. 'fr-CA'.
-     * Inspects the associated {@link dataRecord} for a {@link SiteTree->Locale} value if present,
-     * and falls back to {@link Translatable::get_current_locale()} or {@link i18n::default_locale()},
-     * depending if Translatable is enabled.
     *
     * Suitable for insertion into lang= and xml:lang=
     * attributes in HTML or XHTML output.
@ -426,14 +392,7 @@ HTML;
     */
    public function ContentLocale()
    {
-        if ($this->dataRecord && $this->dataRecord->hasExtension('Translatable')) {
-            $locale = $this->dataRecord->Locale;
-        } elseif (class_exists('Translatable') && SiteTree::has_extension('Translatable')) {
-            $locale = Translatable::get_current_locale();
-        } else {
-            $locale = i18n::get_locale();
-        }
-
+        $locale = i18n::get_locale();
        return i18n::convert_rfc1766($locale);
    }

--- a/code/Controllers/ModelAsController.php
+++ b/code/Controllers/ModelAsController.php
@ -17,7 +17,6 @@ use SilverStripe\Dev\Debug;
 use SilverStripe\ORM\DataObject;
 use SilverStripe\ORM\DB;
 use SilverStripe\View\Parsers\URLSegmentFilter;
-use Translatable;

 /**
 * ModelAsController deals with mapping the initial request to the first {@link SiteTree}/{@link ContentController}
@ -33,11 +32,9 @@ class ModelAsController extends Controller implements NestedController
     * Get the appropriate {@link ContentController} for handling a {@link SiteTree} object, link it to the object and
     * return it.
     *
-     * @param SiteTree $sitetree
     * @param string $action
-     * @return ContentController
     */
-    public static function controller_for(SiteTree $sitetree, $action = null)
+    public static function controller_for(SiteTree $sitetree, $action = null): ContentController
    {
        $controller = $sitetree->getControllerName();

@ -58,7 +55,6 @@ class ModelAsController extends Controller implements NestedController
    {
        parent::beforeHandleRequest($request);
        // If the database has not yet been created, redirect to the build page.
-        /** @skipUpgrade */
        if (!DB::is_active() || !ClassInfo::hasTable('SiteTree')) {
            $this->getResponse()->redirect(Controller::join_links(
                Director::absoluteBaseURL(),
@ -72,10 +68,8 @@ class ModelAsController extends Controller implements NestedController

    /**
     * @uses ModelAsController::getNestedController()
-     * @param HTTPRequest $request
-     * @return HTTPResponse
     */
-    public function handleRequest(HTTPRequest $request)
+    public function handleRequest(HTTPRequest $request): HTTPResponse
    {
        $this->beforeHandleRequest($request);

@ -86,23 +80,16 @@ class ModelAsController extends Controller implements NestedController
        }

        // If the database has not yet been created, redirect to the build page.
-        /** @skipUpgrade */
        if (!DB::is_active() || !ClassInfo::hasTable('SiteTree')) {
-            $this->getResponse()->redirect(Director::absoluteBaseURL() . 'dev/build?returnURL=' . (isset($_GET['url']) ? urlencode($_GET['url']) : null));
+            $this->getResponse()->redirect(Controller::join_links(Director::absoluteBaseURL(), 'dev/build?returnURL=' . (isset($_GET['url']) ? urlencode($_GET['url']) : null)));
            $this->popCurrent();

            return $this->getResponse();
        }

        try {
-            $result = $this->getNestedController();
-
-            if ($result instanceof RequestHandler) {
-                $result = $result->handleRequest($this->getRequest());
-            } elseif (!($result instanceof HTTPResponse)) {
-                user_error("ModelAsController::getNestedController() returned bad object type '" .
-                    get_class($result)."'", E_USER_WARNING);
-            }
+            $result = $this->getNestedController()->handleRequest($this->getRequest());
+            $result = $result;
        } catch (HTTPResponse_Exception $responseException) {
            $result = $responseException->getResponse();
        }
@ -112,10 +99,9 @@ class ModelAsController extends Controller implements NestedController
    }

    /**
-     * @return ContentController
     * @throws Exception If URLSegment not passed in as a request parameter.
     */
-    public function getNestedController()
+    public function getNestedController(): ContentController
    {
        $request = $this->getRequest();

@ -123,11 +109,6 @@ class ModelAsController extends Controller implements NestedController
            throw new Exception('ModelAsController->getNestedController(): was not passed a URLSegment value.');
        }

-        // Find page by link, regardless of current locale settings
-        if (class_exists('Translatable')) {
-            Translatable::disable_locale_filter();
-        }
-
        // url encode unless it's multibyte (already pre-encoded in the database)
        $filter = URLSegmentFilter::create();
        if (!$filter->getAllowMultibyte()) {
@ -143,21 +124,10 @@ class ModelAsController extends Controller implements NestedController
        /** @var SiteTree $sitetree */
        $sitetree = DataObject::get_one(SiteTree::class, $conditions);

-        // Check translation module
-        // @todo Refactor out module specific code
-        if (class_exists('Translatable')) {
-            Translatable::enable_locale_filter();
-        }
-
        if (!$sitetree) {
            $this->httpError(404, 'The requested page could not be found.');
        }

-        // Enforce current locale setting to the loaded SiteTree object
-        if (class_exists('Translatable') && $sitetree->Locale) {
-            Translatable::set_current_locale($sitetree->Locale);
-        }
-
        if (isset($_REQUEST['debug'])) {
            Debug::message("Using record #$sitetree->ID of type " . get_class($sitetree) . " with link {$sitetree->Link()}");
        }
--- a/code/Controllers/OldPageRedirector.php
+++ b/code/Controllers/OldPageRedirector.php
@ -17,10 +17,9 @@ class OldPageRedirector extends Extension
     * On every URL that generates a 404, we'll capture it here and see if we can
     * find an old URL that it should be redirecting to.
     *
-     * @param HTTPRequest $request The request object
     * @throws HTTPResponse_Exception
     */
-    public function onBeforeHTTPError404($request)
+    public function onBeforeHTTPError404(HTTPRequest $request)
    {
        // We need to get the URL ourselves because $request->allParams() only has a max of 4 params
        $params = preg_split('|/+|', $request->getURL() ?? '');
@ -103,7 +102,7 @@ class OldPageRedirector extends Extension
                    // No valid page found.
                    if ($redirect) {
                        // If we had some redirect to be done, lets do it. imagine /foo/action -> /bar/action, we still want this redirect to happen if action isn't a page
-                        return $page->Link() . implode('/', $params);
+                        return Controller::join_links($page->Link(), implode('/', $params));
                    }
                }
            } else {
--- a/code/Controllers/RootURLController.php
+++ b/code/Controllers/RootURLController.php
@ -73,7 +73,6 @@ class RootURLController extends Controller implements Resettable

        self::$is_at_root = true;

-        /** @skipUpgrade */
        if (!DB::is_active() || !ClassInfo::hasTable('SiteTree')) {
            $this->getResponse()->redirect(Controller::join_links(
                Director::absoluteBaseURL(),
@ -85,17 +84,12 @@ class RootURLController extends Controller implements Resettable
        }
    }

-    /**
-     * @param HTTPRequest $request
-     * @return HTTPResponse
-     */
-    public function handleRequest(HTTPRequest $request)
+    public function handleRequest(HTTPRequest $request): HTTPResponse
    {
        self::$is_at_root = true;
        $this->beforeHandleRequest($request);

        if (!$this->getResponse()->isFinished()) {
-            /** @skipUpgrade */
            if (!DB::is_active() || !ClassInfo::hasTable('SiteTree')) {
                $this->getResponse()->redirect(Director::absoluteBaseURL() . 'dev/build?returnURL=' . (isset($_GET['url']) ? urlencode($_GET['url']) : null));
                return $this->getResponse();
--- a/code/Controllers/SilverStripeNavigator.php
+++ b/code/Controllers/SilverStripeNavigator.php
@ -1,118 +0,0 @@
-<?php
-
-namespace SilverStripe\CMS\Controllers;
-
-use SilverStripe\ORM\CMSPreviewable;
-use SilverStripe\Core\ClassInfo;
-use SilverStripe\Dev\Deprecation;
-use SilverStripe\ORM\ArrayList;
-use SilverStripe\ORM\DataObject;
-use SilverStripe\ORM\SS_List;
-use SilverStripe\View\ViewableData;
-
-/**
- * Utility class representing links to different views of a record
- * for CMS authors, usually for {@link SiteTree} objects with "stage" and "live" links.
- * Useful both in the CMS and alongside the page template (for logged in authors).
- * The class can be used for any {@link DataObject} subclass implementing the {@link CMSPreviewable} interface.
- *
- * New item types can be defined by extending the {@link SilverStripeNavigatorItem} class,
- * for example the "cmsworkflow" module defines a new "future state" item with a date selector
- * to view embargoed data at a future point in time. So the item doesn't always have to be a simple link.
- *
- * Class will be moved from `silverstripe/cms` to `silverstripe/admin`
- * @deprecated 4.13.0 Will be renamed SilverStripe\Admin\Navigator\SilverStripeNavigator
- */
-class SilverStripeNavigator extends ViewableData
-{
-
-    /**
-     * @var DataObject|\SilverStripe\ORM\CMSPreviewable
-     */
-    protected $record;
-
-    /**
-     * @param DataObject|\SilverStripe\ORM\CMSPreviewable $record
-     */
-    public function __construct(CMSPreviewable $record)
-    {
-        Deprecation::withNoReplacement(function () {
-            Deprecation::notice(
-                '4.13.0',
-                'Will be renamed SilverStripe\Admin\Navigator\SilverStripeNavigator',
-                Deprecation::SCOPE_CLASS
-            );
-        });
-        parent::__construct();
-        $this->record = $record;
-    }
-
-    /**
-     * @return SS_List of SilverStripeNavigatorItem
-     */
-    public function getItems()
-    {
-        $items = [];
-
-        $classes = ClassInfo::subclassesFor(SilverStripeNavigatorItem::class);
-        array_shift($classes);
-
-        // Sort menu items according to priority
-        foreach ($classes as $class) {
-            /** @var SilverStripeNavigatorItem $item */
-            $item = new $class($this->record);
-            if (!$item->canView()) {
-                continue;
-            }
-
-            // This funny litle formula ensures that the first item added with the same priority will be left-most.
-            $priority = $item->getPriority() * 100 - 1;
-
-            // Ensure that we can have duplicates with the same (default) priority
-            while (isset($items[$priority])) {
-                $priority++;
-            }
-
-            $items[$priority] = $item;
-        }
-        ksort($items);
-
-        // Drop the keys and let the ArrayList handle the numbering, so $IsFirst, $IsLast and others work properly.
-        return new ArrayList(array_values($items ?? []));
-    }
-
-    /**
-     * @return DataObject|\SilverStripe\ORM\CMSPreviewable
-     */
-    public function getRecord()
-    {
-        return $this->record;
-    }
-
-    /**
-     * @param DataObject|CMSPreviewable $record
-     * @return array template data
-     */
-    public static function get_for_record($record)
-    {
-        $html = '';
-        $message = '';
-        $navigator = new SilverStripeNavigator($record);
-        $items = $navigator->getItems();
-        foreach ($items as $item) {
-            $text = $item->getHTML();
-            if ($text) {
-                $html .= $text;
-            }
-            $newMessage = $item->getMessage();
-            if ($newMessage && $item->isActive()) {
-                $message = $newMessage;
-            }
-        }
-
-        return [
-            'items' => $html,
-            'message' => $message
-        ];
-    }
-}
--- a/code/Controllers/SilverStripeNavigatorItem.php
+++ b/code/Controllers/SilverStripeNavigatorItem.php
@ -1,155 +0,0 @@
-<?php
-
-namespace SilverStripe\CMS\Controllers;
-
-use SilverStripe\Dev\Deprecation;
-use SilverStripe\ORM\CMSPreviewable;
-use SilverStripe\ORM\DataObject;
-use SilverStripe\Versioned\Versioned;
-use SilverStripe\Security\Member;
-use SilverStripe\View\ViewableData;
-
-/**
- * Navigator items are links that appear in the $SilverStripeNavigator bar.
- * To add an item, extend this class - it will be automatically picked up.
- * When instanciating items manually, please ensure to call {@link canView()}.
- *
- * Class have been moved from `silverstripe/cms` to `silverstripe/admin` and renamed.
- * @deprecated Will be renamed SilverStripe\Admin\Navigator\SilverStripeNavigatorItem
- */
-abstract class SilverStripeNavigatorItem extends ViewableData
-{
-
-    /**
-     * @param DataObject|CMSPreviewable
-     */
-    protected $record;
-
-    /** @var string */
-    protected $recordLink;
-
-    public function __construct(CMSPreviewable $record)
-    {
-        Deprecation::withNoReplacement(function () {
-            switch (static::class) {
-                // These classes have their own deprecation notice
-                case 'SilverStripe\CMS\Controllers\SilverStripeNavigatorItem_ArchiveLink':
-                case 'SilverStripe\CMS\Controllers\SilverStripeNavigatorItem_LiveLink':
-                case 'SilverStripe\CMS\Controllers\SilverStripeNavigatorItem_StageLink':
-                case 'SilverStripe\CMS\Controllers\SilverStripeNavigatorItem_Unversioned':
-                // This class is not deprecated and doesn't have a deprecation notice
-                case 'SilverStripe\CMS\Controllers\SilverStripeNavigatorItem_CMSLink':
-                    break;
-                default:
-                    Deprecation::notice(
-                        '4.13.0',
-                        'Will be renamed SilverStripe\Admin\Navigator\SilverStripeNavigatorItem',
-                        Deprecation::SCOPE_CLASS
-                    );
-            }
-        });
-        parent::__construct();
-        $this->record = $record;
-    }
-
-    /**
-     * @return string HTML, mostly a link - but can be more complex as well.
-     * For example, a "future state" item might show a date selector.
-     */
-    abstract public function getHTML();
-
-    /**
-     * @return string
-     * Get the Title of an item
-     */
-    abstract public function getTitle();
-
-    /**
-     * Machine-friendly name.
-     *
-     * @return string
-     */
-    public function getName()
-    {
-        return substr(static::class, strpos(static::class, '_') + 1);
-    }
-
-    /**
-     * Optional link to a specific view of this record.
-     * Not all items are simple links, please use {@link getHTML()}
-     * to represent an item in markup unless you know what you're doing.
-     *
-     * @return string
-     */
-    public function getLink()
-    {
-        return null;
-    }
-
-    /**
-     * @return string
-     */
-    public function getMessage()
-    {
-        return null;
-    }
-
-    /**
-     * @return DataObject
-     */
-    public function getRecord()
-    {
-        return $this->record;
-    }
-
-    /**
-     * @return int
-     */
-    public function getPriority()
-    {
-        return $this->config()->get('priority');
-    }
-
-    /**
-     * As items might convey different record states like a "stage" or "live" table,
-     * an item can be active (showing the record in this state).
-     *
-     * @return boolean
-     */
-    public function isActive()
-    {
-        return false;
-    }
-
-    /**
-     * Filters items based on member permissions or other criteria,
-     * such as if a state is generally available for the current record.
-     *
-     * @param Member $member
-     * @return Boolean
-     */
-    public function canView($member = null)
-    {
-        return true;
-    }
-
-    /**
-     * Counts as "archived" if the current record is a different version from both live and draft.
-     *
-     * @return boolean
-     */
-    public function isArchived()
-    {
-        /** @var Versioned|DataObject $record */
-        $record = $this->record;
-        if (!$record->hasExtension(Versioned::class) || !$record->hasStages()) {
-            return false;
-        }
-
-        if (!isset($record->_cached_isArchived)) {
-            $record->_cached_isArchived = $record->isArchived();
-        }
-
-        return $record->_cached_isArchived;
-    }
-}
--- a/code/Controllers/SilverStripeNavigatorItem_ArchiveLink.php
+++ b/code/Controllers/SilverStripeNavigatorItem_ArchiveLink.php
@ -1,92 +0,0 @@
-<?php
-namespace SilverStripe\CMS\Controllers;
-
-use SilverStripe\CMS\Model\RedirectorPage;
-use SilverStripe\Control\Controller;
-use SilverStripe\Core\Convert;
-use SilverStripe\Dev\Deprecation;
-use SilverStripe\ORM\CMSPreviewable;
-use SilverStripe\ORM\DataObject;
-use SilverStripe\ORM\FieldType\DBDatetime;
-use SilverStripe\ORM\FieldType\DBField;
-use SilverStripe\Versioned\Versioned;
-
-/**
- * Class will be moved from `silverstripe/cms` to `silverstripe/admin`
- * @deprecated 4.13.0 Will be renamed SilverStripe\VersionedAdmin\Navigator\SilverStripeNavigatorItem_ArchiveLink
- */
-class SilverStripeNavigatorItem_ArchiveLink extends SilverStripeNavigatorItem
-{
-    /**
-     * @param DataObject|CMSPreviewable $record
-     */
-    public function __construct(CMSPreviewable $record)
-    {
-        Deprecation::withNoReplacement(function () {
-            Deprecation::notice(
-                '4.13.0',
-                'Will be renamed SilverStripe\VersionedAdmin\Navigator\SilverStripeNavigatorItem_ArchiveLink',
-                Deprecation::SCOPE_CLASS
-            );
-        });
-        parent::__construct($record);
-    }
-
-    /** @config */
-    private static $priority = 40;
-
-    public function getHTML()
-    {
-        $linkClass = $this->isActive() ? 'ss-ui-button current' : 'ss-ui-button';
-        $linkTitle = _t('SilverStripe\\CMS\\Controllers\\ContentController.ARCHIVEDSITE', 'Preview version');
-        $recordLink = Convert::raw2att(Controller::join_links(
-            $this->record->AbsoluteLink(),
-            '?archiveDate=' . urlencode($this->record->LastEdited ?? '')
-        ));
-        return "<a class=\"{$linkClass}\" href=\"$recordLink\" target=\"_blank\">$linkTitle</a>";
-    }
-
-    public function getTitle()
-    {
-        return _t('SilverStripe\\CMS\\Controllers\\SilverStripeNavigator.ARCHIVED', 'Archived');
-    }
-
-    public function getMessage()
-    {
-        $date = Versioned::current_archived_date();
-        if (empty($date)) {
-            return null;
-        }
-        /** @var DBDatetime $dateObj */
-        $dateObj = DBField::create_field('Datetime', $date);
-        $title = _t('SilverStripe\\CMS\\Controllers\\ContentController.NOTEWONTBESHOWN', 'Note: this message will not be shown to your visitors');
-        return "<div id=\"SilverStripeNavigatorMessage\" title=\"{$title}\">"
-            . _t('SilverStripe\\CMS\\Controllers\\ContentController.ARCHIVEDSITEFROM', 'Archived site from')
-            . "<br />" . $dateObj->Nice() . "</div>";
-    }
-
-    public function getLink()
-    {
-        $link = $this->record->PreviewLink();
-        return $link ? Controller::join_links($link, '?archiveDate=' . urlencode($this->record->LastEdited ?? '')) : '';
-    }
-
-    public function canView($member = null)
-    {
-        /** @var Versioned|DataObject $record */
-        $record = $this->record;
-        return (
-            $record->hasExtension(Versioned::class)
-            && $record->hasStages()
-            && $this->isArchived()
-            // Don't follow redirects in preview, they break the CMS editing form
-            && !($record instanceof RedirectorPage)
-            && $this->getLink()
-        );
-    }
-
-    public function isActive()
-    {
-        return $this->isArchived();
-    }
-}
--- a/code/Controllers/SilverStripeNavigatorItem_CMSLink.php
+++ b/code/Controllers/SilverStripeNavigatorItem_CMSLink.php
@ -3,6 +3,7 @@
 namespace SilverStripe\CMS\Controllers;

 use SilverStripe\Admin\LeftAndMain;
+use SilverStripe\Admin\Navigator\SilverStripeNavigatorItem;
 use SilverStripe\CMS\Model\RedirectorPage;
 use SilverStripe\Control\Controller;

--- a/code/Controllers/SilverStripeNavigatorItem_LiveLink.php
+++ b/code/Controllers/SilverStripeNavigatorItem_LiveLink.php
@ -1,106 +0,0 @@
-<?php
-namespace SilverStripe\CMS\Controllers;
-
-use SilverStripe\Control\Controller;
-use SilverStripe\Core\Config\Config;
-use SilverStripe\Core\Convert;
-use SilverStripe\Dev\Deprecation;
-use SilverStripe\ORM\CMSPreviewable;
-use SilverStripe\ORM\DataObject;
-use SilverStripe\Versioned\Versioned;
-
-/**
- * Class will be moved from `silverstripe/cms` to `silverstripe/admin`.
- * @deprecated 4.13.0 Will be renamed SilverStripe\VersionedAdmin\Navigator\SilverStripeNavigatorItem_LiveLink
- */
-class SilverStripeNavigatorItem_LiveLink extends SilverStripeNavigatorItem
-{
-    public function __construct(CMSPreviewable $record)
-    {
-        Deprecation::withNoReplacement(function () {
-            Deprecation::notice(
-                '4.13.0',
-                'Will be renamed SilverStripe\VersionedAdmin\Navigator\SilverStripeNavigatorItem_LiveLink',
-                Deprecation::SCOPE_CLASS
-            );
-        });
-        parent::__construct($record);
-    }
-
-    /** @config */
-    private static $priority = 30;
-
-    public function getHTML()
-    {
-        $livePage = $this->getLivePage();
-        if (!$livePage) {
-            return null;
-        }
-
-        $linkClass = $this->isActive() ? 'class="current" ' : '';
-        $linkTitle = _t('SilverStripe\\CMS\\Controllers\\ContentController.PUBLISHEDSITE', 'Published Site');
-        $recordLink = Convert::raw2att(Controller::join_links($livePage->AbsoluteLink(), "?stage=Live"));
-        return "<a {$linkClass} href=\"$recordLink\">$linkTitle</a>";
-    }
-
-    public function getTitle()
-    {
-        return _t(
-            'SilverStripe\\CMS\\Controllers\\ContentController.PUBLISHED',
-            'Published',
-            'Used for the Switch between draft and published view mode. Needs to be a short label'
-        );
-    }
-
-    public function getMessage()
-    {
-        return "<div id=\"SilverStripeNavigatorMessage\" title=\"" . _t(
-            'SilverStripe\\CMS\\Controllers\\ContentController.NOTEWONTBESHOWN',
-            'Note: this message will not be shown to your visitors'
-        ) . "\">" . _t(
-            'SilverStripe\\CMS\\Controllers\\ContentController.PUBLISHEDSITE',
-            'Published Site'
-        ) . "</div>";
-    }
-
-    public function getLink()
-    {
-        $link = $this->getLivePage()->PreviewLink();
-        return $link ? Controller::join_links($link, '?stage=Live') : '';
-    }
-
-    public function canView($member = null)
-    {
-        /** @var Versioned|DataObject $record */
-        $record = $this->record;
-        return (
-            $record->hasExtension(Versioned::class)
-            && $this->showLiveLink()
-            && $record->hasStages()
-            && $this->getLivePage()
-            && $this->getLink()
-        );
-    }
-
-    /**
-     * @return bool
-     */
-    public function showLiveLink()
-    {
-        return (bool)Config::inst()->get(get_class($this->record), 'show_live_link');
-    }
-
-    public function isActive()
-    {
-        return (
-            (!Versioned::get_stage() || Versioned::get_stage() == 'Live')
-            && !$this->isArchived()
-        );
-    }
-
-    protected function getLivePage()
-    {
-        $baseClass = $this->record->baseClass();
-        return Versioned::get_by_stage($baseClass, Versioned::LIVE)->byID($this->record->ID);
-    }
-}
--- a/code/Controllers/SilverStripeNavigatorItem_StageLink.php
+++ b/code/Controllers/SilverStripeNavigatorItem_StageLink.php
@ -1,115 +0,0 @@
-<?php
-namespace SilverStripe\CMS\Controllers;
-
-use SilverStripe\Control\Controller;
-use SilverStripe\Core\Config\Config;
-use SilverStripe\Core\ClassInfo;
-use SilverStripe\Core\Convert;
-use SilverStripe\Dev\Deprecation;
-use SilverStripe\ORM\CMSPreviewable;
-use SilverStripe\ORM\DataObject;
-use SilverStripe\Versioned\Versioned;
-use SiteTreeFutureState;
-
-/**
- * Class will be moved from `silverstripe/cms` to `silverstripe/admin`.
- * @deprecated 4.13.0 Will be renamed SilverStripe\VersionedAdmin\Navigator\SilverStripeNavigatorItem_StageLink
- */
-class SilverStripeNavigatorItem_StageLink extends SilverStripeNavigatorItem
-{
-    public function __construct(CMSPreviewable $record)
-    {
-        Deprecation::withNoReplacement(function () {
-            Deprecation::notice(
-                '4.13.0',
-                'Will be renamed SilverStripe\VersionedAdmin\Navigator\SilverStripeNavigatorItem_StageLink',
-                Deprecation::SCOPE_CLASS
-            );
-        });
-        parent::__construct($record);
-    }
-    /** @config */
-    private static $priority = 20;
-
-    public function getHTML()
-    {
-        $draftPage = $this->getDraftPage();
-        if (!$draftPage) {
-            return null;
-        }
-        $linkClass = $this->isActive() ? 'class="current" ' : '';
-        $linkTitle = _t('SilverStripe\\CMS\\Controllers\\ContentController.DRAFTSITE', 'Draft Site');
-        $recordLink = Convert::raw2att(Controller::join_links($draftPage->AbsoluteLink(), "?stage=Stage"));
-        return "<a {$linkClass} href=\"$recordLink\">$linkTitle</a>";
-    }
-
-    public function getTitle()
-    {
-        return _t(
-            'SilverStripe\\CMS\\Controllers\\ContentController.DRAFT',
-            'Draft',
-            'Used for the Switch between draft and published view mode. Needs to be a short label'
-        );
-    }
-
-    public function getMessage()
-    {
-        return "<div id=\"SilverStripeNavigatorMessage\" title=\"" . _t(
-            'SilverStripe\\CMS\\Controllers\\ContentController.NOTEWONTBESHOWN',
-            'Note: this message will not be shown to your visitors'
-        ) . "\">" . _t(
-            'SilverStripe\\CMS\\Controllers\\ContentController.DRAFTSITE',
-            'Draft Site'
-        ) . "</div>";
-    }
-
-    public function getLink()
-    {
-        $date = Versioned::current_archived_date();
-        $link = $this->record->PreviewLink();
-        if (!$link) {
-            return '';
-        }
-        return Controller::join_links(
-            $link,
-            '?stage=Stage',
-            $date ? '?archiveDate=' . $date : null
-        );
-    }
-
-    public function canView($member = null)
-    {
-        /** @var Versioned|DataObject $record */
-        $record = $this->record;
-        return (
-            $record->hasExtension(Versioned::class)
-            && $this->showStageLink()
-            && $record->hasStages()
-            && $this->getDraftPage()
-            && $this->getLink()
-        );
-    }
-
-    /**
-     * @return bool
-     */
-    public function showStageLink()
-    {
-        return (bool)Config::inst()->get(get_class($this->record), 'show_stage_link');
-    }
-
-    public function isActive()
-    {
-        return (
-            Versioned::get_stage() == 'Stage'
-            && !(ClassInfo::exists('SiteTreeFutureState') && SiteTreeFutureState::get_future_datetime())
-            && !$this->isArchived()
-        );
-    }
-
-    protected function getDraftPage()
-    {
-        $baseClass = $this->record->baseClass();
-        return Versioned::get_by_stage($baseClass, Versioned::DRAFT)->byID($this->record->ID);
-    }
-}
--- a/code/Controllers/SilverStripeNavigatorItem_Unversioned.php
+++ b/code/Controllers/SilverStripeNavigatorItem_Unversioned.php
@ -1,98 +0,0 @@
-<?php
-
-namespace SilverStripe\CMS\Controllers;
-
-use SilverStripe\CMS\Controllers\SilverStripeNavigatorItem;
-use SilverStripe\Core\Config\Config;
-use SilverStripe\Core\Convert;
-use SilverStripe\Dev\Deprecation;
-use SilverStripe\ORM\CMSPreviewable;
-use SilverStripe\Security\Member;
-use SilverStripe\Versioned\Versioned;
-
-/**
- * Class will be moved from `silverstripe/cms` to `silverstripe/admin`.
- * @deprecated 4.13.0 Will be renamed SilverStripe\Admin\Navigator\SilverStripeNavigatorItem_Unversioned
- */
-class SilverStripeNavigatorItem_Unversioned extends SilverStripeNavigatorItem
-{
-    public function __construct(CMSPreviewable $record)
-    {
-        Deprecation::withNoReplacement(function () {
-            Deprecation::notice(
-                '4.13.0',
-                'Will be renamed SilverStripe\Admin\Navigator\SilverStripeNavigatorItem_Unversioned',
-                Deprecation::SCOPE_CLASS
-            );
-        });
-        parent::__construct($record);
-    }
-
-    public function getHTML()
-    {
-        $recordLink = Convert::raw2att($this->getLink());
-        $linkTitle = _t('SilverStripe\\CMS\\Controllers\\ContentController.UNVERSIONEDPREVIEW', 'Preview');
-        return "<a class=\"current\" href=\"$recordLink\">$linkTitle</a>";
-    }
-
-    public function getLink()
-    {
-        return $this->getRecord()->PreviewLink() ?? '';
-    }
-
-    public function getTitle()
-    {
-        return  _t(
-            'SilverStripe\\CMS\\Controllers\\ContentController.UNVERSIONEDPREVIEW',
-            'Preview',
-            'Used for the Switch between states (if any other other states are added). Needs to be a short label'
-        );
-    }
-
-    /**
-     * True if the record doesn't have the Versioned extension and is configured to display this item.
-     *
-     * @param Member $member
-     * @return bool
-     */
-    public function canView($member = null)
-    {
-        return (
-            $this->recordIsUnversioned()
-            && $this->showUnversionedLink()
-            && $this->getLink()
-        );
-    }
-
-    private function recordIsUnversioned(): bool
-    {
-        $record = $this->getRecord();
-        // If the record has the Versioned extension, it can be considered unversioned
-        // for the purposes of this class if it has no stages and is not archived.
-        if ($record->hasExtension(Versioned::class)) {
-            return (!$record->hasStages()) && !$this->isArchived();
-        }
-        // Completely unversioned.
-        return true;
-    }
-
-    /**
-     * True if the record is configured to display this item.
-     *
-     * @return bool
-     */
-    public function showUnversionedLink(): bool
-    {
-        return (bool) Config::inst()->get(get_class($this->record), 'show_unversioned_preview_link');
-    }
-
-    /**
-     * This item is always active, as there are unlikely to be other preview states available for the record.
-     *
-     * @return bool
-     */
-    public function isActive()
-    {
-        return true;
-    }
-}
--- a/code/Forms/SiteTreeURLSegmentField.php
+++ b/code/Forms/SiteTreeURLSegmentField.php
@ -134,7 +134,7 @@ class SiteTreeURLSegmentField extends TextField
     */
    public function getURLPrefix()
    {
-        return $this->urlPrefix;
+        return rtrim($this->urlPrefix ?? '', '/') . '/';
    }

    public function getURLSuffix()
--- a/code/Model/SiteTree.php
+++ b/code/Model/SiteTree.php
@ -25,7 +25,6 @@ use SilverStripe\Core\Manifest\ModuleResource;
 use SilverStripe\Core\Manifest\ModuleResourceLoader;
 use SilverStripe\Core\Manifest\VersionProvider;
 use SilverStripe\Core\Resettable;
-use SilverStripe\Dev\Deprecation;
 use SilverStripe\Forms\CheckboxField;
 use SilverStripe\Forms\CompositeField;
 use SilverStripe\Forms\DropdownField;
@ -639,7 +638,7 @@ class SiteTree extends DataObject implements PermissionProvider, i18nEntityProvi
        if ($this->hasMethod('alternateAbsoluteLink')) {
            return $this->alternateAbsoluteLink($action);
        } else {
-            return Director::absoluteURL($this->Link($action));
+            return Director::absoluteURL((string) $this->Link($action));
        }
    }

@ -652,13 +651,6 @@ class SiteTree extends DataObject implements PermissionProvider, i18nEntityProvi
     */
    public function PreviewLink($action = null)
    {
-        if ($this->hasMethod('alternatePreviewLink')) {
-            Deprecation::withNoReplacement(function () use ($action) {
-                Deprecation::notice('5.0', 'Use updatePreviewLink or override PreviewLink method');
-                return $this->alternatePreviewLink($action);
-            });
-        }
-
        $link = $this->AbsoluteLink($action);
        $this->extend('updatePreviewLink', $link, $action);
        return $link;
@ -699,15 +691,17 @@ class SiteTree extends DataObject implements PermissionProvider, i18nEntityProvi
            $base = $this->URLSegment;
        }

-        $this->extend('updateRelativeLink', $base, $action);
-
        // Legacy support: If $action === true, retain URLSegment for homepages,
        // but don't append any action
        if ($action === true) {
            $action = null;
        }

-        return Controller::join_links($base, '/', $action);
+        $link = Controller::join_links($base, $action);
+
+        $this->extend('updateRelativeLink', $link, $base, $action);
+
+        return $link;
    }

    /**
@ -2468,7 +2462,6 @@ class SiteTree extends DataObject implements PermissionProvider, i18nEntityProvi
        // "readonly"/viewing version that isn't the current version of the record
        /** @var SiteTree $stageRecord */
        $stageRecord = Versioned::get_by_stage(static::class, Versioned::DRAFT)->byID($this->ID);
-        /** @skipUpgrade */
        if ($stageRecord && $stageRecord->Version != $this->Version) {
            $moreOptions->push(FormAction::create('email', _t('SilverStripe\\CMS\\Controllers\\CMSMain.EMAIL', 'Email')));
            $moreOptions->push(FormAction::create('rollback', _t('SilverStripe\\CMS\\Controllers\\CMSMain.ROLLBACK', 'Roll back to this version')));
@ -2513,7 +2506,7 @@ class SiteTree extends DataObject implements PermissionProvider, i18nEntityProvi
        // Note: It would be nice to have a canRestore() permission at some point
        if ($canEdit && !$isOnDraft && !$isPublished) {
            // Determine if we should force a restore to root (where once it was a subpage)
-            $restoreToRoot = $this->isParentArchived();
+            $restoreToRoot = $this->isParentArchived() && $this->config()->get('can_be_root');

            // "restore"
            $title = $restoreToRoot
@ -2522,13 +2515,15 @@ class SiteTree extends DataObject implements PermissionProvider, i18nEntityProvi
            $description = $restoreToRoot
                ? _t('SilverStripe\\CMS\\Controllers\\CMSMain.RESTORE_TO_ROOT_DESC', 'Restore the archived version to draft as a top level page')
                : _t('SilverStripe\\CMS\\Controllers\\CMSMain.RESTORE_DESC', 'Restore the archived version to draft');
-            $majorActions->push(
-                FormAction::create('restore', $title)
-                    ->setDescription($description)
-                    ->setAttribute('data-to-root', $restoreToRoot)
-                    ->addExtraClass('btn-warning font-icon-back-in-time')
-                    ->setUseButtonTag(true)
-            );
+            if (!$this->isParentArchived() || $restoreToRoot) {
+                $majorActions->push(
+                    FormAction::create('restore', $title)
+                        ->setDescription($description)
+                        ->setAttribute('data-to-root', $restoreToRoot)
+                        ->addExtraClass('btn-warning font-icon-back-in-time')
+                        ->setUseButtonTag(true)
+                );
+            }
        }

        // If a page is on any stage it can be archived
@ -2790,35 +2785,6 @@ class SiteTree extends DataObject implements PermissionProvider, i18nEntityProvi
        return $allowedChildren;
    }

-    /**
-     * @deprecated 4.12.0 Use creatableChildPages() instead
-     *
-     * Gets a list of the page types that can be created under this specific page
-     *
-     * @return array
-     */
-    public function creatableChildren()
-    {
-        Deprecation::notice('4.12.0', 'Use creatableChildPages() instead');
-        // Build the list of candidate children
-        $cache = SiteTree::singleton()->getCreatableChildrenCache();
-        $cacheKey = $this->generateChildrenCacheKey(Security::getCurrentUser() ? Security::getCurrentUser()->ID : 0);
-        $children = $cache->get($cacheKey, []);
-        if (!$children || !isset($children[$this->ID])) {
-            $children[$this->ID] = [];
-            $candidates = static::page_type_classes();
-            foreach ($candidates as $childClass) {
-                $child = singleton($childClass);
-                if ($child->canCreate(null, ['Parent' => $this])) {
-                    $children[$this->ID][$childClass] = $child->i18n_singular_name();
-                }
-            }
-            $cache->set($cacheKey, $children);
-        }
-
-        return $children[$this->ID];
-    }
-
    /**
     *
     * Gets a list of the page types that can be created under this specific page, including font icons
@ -3067,14 +3033,6 @@ class SiteTree extends DataObject implements PermissionProvider, i18nEntityProvi
            // If we have a class of "{$ClassName}Controller" then we found our controller
            if (class_exists($candidate = sprintf('%sController', $class))) {
                return $candidate;
-            } elseif (class_exists($candidate = sprintf('%s_Controller', $class))) {
-                // Support the legacy underscored filename, but raise a deprecation notice
-                Deprecation::notice(
-                    '5.0',
-                    'Underscored controller class names are deprecated. Use "MyController" instead of "My_Controller".',
-                    Deprecation::SCOPE_GLOBAL
-                );
-                return $candidate;
            } elseif (is_array($namespaceMap)) {
                foreach ($namespaceMap as $pageNamespace => $controllerNamespace) {
                    if (strpos($class, $pageNamespace) !== 0) {
@ -3338,7 +3296,7 @@ class SiteTree extends DataObject implements PermissionProvider, i18nEntityProvi
    }

    /**
-     * Cache key for creatableChildren() method
+     * Cache key for creatableChildPages() method
     *
     * @param int $memberID
     * @return string
--- a/code/Model/SiteTreeExtension.php
+++ b/code/Model/SiteTreeExtension.php
@ -75,13 +75,15 @@ abstract class SiteTreeExtension extends DataExtension
     * before {@link SiteTree::RelativeLink()} calls {@link Controller::join_links()}
     * on the $base and $action
     *
-     * @param string &$base The URL of this page relative to siteroot, not including
+     * @param string &$link The URL of this page relative to siteroot including
     * the action
-     * @param string|boolean &$action The action or subpage called on this page.
+     * @param string $base The URL of this page relative to siteroot, not including
+     * the action
+     * @param string|boolean $action The action or subpage called on this page.
     * (Legacy support) If this is true, then do not reduce the 'home' urlsegment
     * to an empty link
     */
-    public function updateRelativeLink(&$base, &$action)
+    public function updateRelativeLink(&$link, $base, $action)
    {
    }
 }
--- a/code/Model/SiteTreeFileExtension.php
+++ b/code/Model/SiteTreeFileExtension.php
@ -1,35 +0,0 @@
-<?php
-
-namespace SilverStripe\CMS\Model;
-
-use SilverStripe\Dev\Deprecation;
-use SilverStripe\Assets\File;
-use SilverStripe\ORM\DataExtension;
-use SilverStripe\View\SSViewer;
-
-/**
- * @deprecated 4.2.0 Use FileLinkTracking instead
- * @property File $owner
- */
-class SiteTreeFileExtension extends DataExtension
-{
-    private static $casting = [
-        'BackLinkHTMLList' => 'HTMLFragment'
-    ];
-
-    /**
-     * Generate an HTML list which provides links to where a file is used.
-     *
-     * @return string
-     */
-    public function __construct()
-    {
-        Deprecation::notice('4.2.0', 'Use FileLinkTracking instead', Deprecation::SCOPE_CLASS);
-    }
-
-    public function BackLinkHTMLList()
-    {
-        $viewer = SSViewer::create(['type' => 'Includes', self::class . '_description']);
-        return $viewer->process($this->owner);
-    }
-}
--- a/code/Model/SiteTreeFileFormFactoryExtension.php
+++ b/code/Model/SiteTreeFileFormFactoryExtension.php
@ -1,50 +0,0 @@
-<?php
-
-namespace SilverStripe\CMS\Model;
-
-use SilverStripe\Assets\File;
-use SilverStripe\Dev\Deprecation;
-use SilverStripe\Forms\FieldList;
-use SilverStripe\Forms\Tab;
-use SilverStripe\Forms\TabSet;
-use SilverStripe\ORM\DataExtension;
-use SilverStripe\Admin\Forms\UsedOnTable;
-use SilverStripe\Versioned\RecursivePublishable;
-
-/**
- * @deprecated 4.12.0 Use UsedOnTable instead
- *
- * Extension applied to {@see FileFormFactory} to decorate with a "Used on:" information area.
- * Uses tracking provided by {@see SiteTreeFileExtension} to generate this.
- *
- * @property File $owner
- * @deprecated 4.12.0 Use UsedOnTable instead
- */
-class SiteTreeFileFormFactoryExtension extends DataExtension
-{
-    public function __construct()
-    {
-        Deprecation::notice('4.12.0', 'Use UsedOnTable instead', Deprecation::SCOPE_CLASS);
-    }
-
-    /**
-     * @deprecated 4.12.0 Use UsedOnTable instead
-     */
-    public function updateFormFields(FieldList $fields, $controller, $formName, $context)
-    {
-        Deprecation::notice('4.12.0', 'Use UsedOnTable instead');
-        /** @var TabSet $tabset */
-        $tabset = $fields->fieldByName('Editor');
-        if (!$tabset) {
-            return;
-        }
-
-        $usedOnField = UsedOnTable::create('UsedOnTableReplacement');
-        $usedOnField->setRecord($context['Record']);
-
-        // Add field to new tab
-        /** @var Tab $tab */
-        $tab = Tab::create('Usage', _t(__CLASS__ . '.USAGE', 'Usage'), $usedOnField);
-        $tabset->push($tab);
-    }
-}
--- a/code/Model/SiteTreeFolderExtension.php
+++ b/code/Model/SiteTreeFolderExtension.php
@ -1,88 +0,0 @@
-<?php
-
-namespace SilverStripe\CMS\Model;
-
-use SilverStripe\Assets\File;
-use SilverStripe\Assets\Folder;
-use SilverStripe\Assets\Shortcodes\FileLink;
-use SilverStripe\Core\ClassInfo;
-use SilverStripe\Core\Config\Config;
-use SilverStripe\Core\Convert;
-use SilverStripe\Dev\Deprecation;
-use SilverStripe\ORM\ArrayList;
-use SilverStripe\ORM\DataExtension;
-use SilverStripe\ORM\DataList;
-use SilverStripe\ORM\DataObject;
-
-/**
- * @deprecated 4.2.0 Will be removed without equivalent functionality to replace it
- */
-class SiteTreeFolderExtension extends DataExtension
-{
-    public function __construct()
-    {
-        Deprecation::notice('4.2.0', 'Will be removed without equivalent functionality to replace it', Deprecation::SCOPE_CLASS);
-        parent::__construct();
-    }
-
-
-    /**
-     * Looks for files used in system and create where clause which contains all ID's of files.
-     *
-     * @deprecated 4.2.0 Will be removed without equivalent functionality to replace it
-     * @returns string where clause which will work as filter.
-     */
-    public function getUnusedFilesListFilter()
-    {
-        Deprecation::notice('4.2.0', 'Will be removed without equivalent functionality to replace it');
-
-        // Add all records in link tracking
-        $usedFiles = FileLink::get()->column('LinkedID');
-
-        // Get all classes that aren't folder
-        $fileClasses = array_diff_key(
-            ClassInfo::subclassesFor(File::class) ?? [],
-            ClassInfo::subclassesFor(Folder::class)
-        );
-
-        // Search on a class-by-class basis
-        $classes = ClassInfo::subclassesFor(SiteTree::class);
-
-        $schema = DataObject::getSchema();
-        foreach ($classes as $className) {
-            // Build query based on all direct has_ones on this class
-            $hasOnes = Config::inst()->get($className, 'has_one', Config::UNINHERITED);
-            if (empty($hasOnes)) {
-                continue;
-            }
-            $where = [];
-            $columns = [];
-            foreach ($hasOnes as $relName => $joinClass) {
-                if (in_array($joinClass, $fileClasses ?? [])) {
-                    $column = $relName . 'ID';
-                    $columns[] = $column;
-                    $quotedColumn = $schema->sqlColumnForField($className, $column);
-                    $where[] = "{$quotedColumn} > 0";
-                }
-            }
-
-            // Get all records with any file ID in the searched columns
-            $recordsArray = DataList::create($className)->whereAny($where)->toArray();
-            $records = ArrayList::create($recordsArray);
-            foreach ($columns as $column) {
-                $usedFiles = array_unique(array_merge($usedFiles, $records->column($column)));
-            }
-        }
-
-        // Create filter based on class and id
-        $classFilter = sprintf(
-            "(\"File\".\"ClassName\" IN (%s))",
-            implode(", ", Convert::raw2sql($fileClasses, true))
-        );
-        if ($usedFiles) {
-            return "\"File\".\"ID\" NOT IN (" . implode(', ', $usedFiles) . ") AND $classFilter";
-        } else {
-            return $classFilter;
-        }
-    }
-}
--- a/code/Model/SiteTreeLink.php
+++ b/code/Model/SiteTreeLink.php
@ -9,8 +9,6 @@ use SilverStripe\ORM\DataObject;
 *
 * @method DataObject Parent() Parent object
 * @method SiteTree Linked() Page being linked to
- *
- * Run `MigrateSiteTreeLinkingTask` to migrate from old table to this.
 */
 class SiteTreeLink extends DataObject
 {
--- a/code/Model/VirtualPage.php
+++ b/code/Model/VirtualPage.php
@ -4,7 +4,6 @@ namespace SilverStripe\CMS\Model;

 use Page;
 use SilverStripe\Core\Convert;
-use SilverStripe\Dev\Deprecation;
 use SilverStripe\Forms\FieldList;
 use SilverStripe\Forms\LiteralField;
 use SilverStripe\Forms\ReadonlyTransformation;
@ -360,30 +359,6 @@ class VirtualPage extends Page
        return $result;
    }

-    /**
-     * @deprecated 4.2.0 Will be removed without equivalent functionality to replace it
-     */
-    public function updateImageTracking()
-    {
-        Deprecation::notice('4.2.0', 'Will be removed without equivalent functionality to replace it');
-
-        // Doesn't work on unsaved records
-        if (!$this->isInDB()) {
-            return;
-        }
-
-        // Remove CopyContentFrom() from the cache
-        unset($this->components['CopyContentFrom']);
-
-        // Update ImageTracking
-        $copyContentFrom = $this->CopyContentFrom();
-        if (!$copyContentFrom || !$copyContentFrom->isInDB()) {
-            return;
-        }
-
-        $this->FileTracking()->setByIDList($copyContentFrom->FileTracking()->column('ID'));
-    }
-
    public function CMSTreeClasses()
    {
        $parentClass = sprintf(
--- a/code/Reports/RecentlyEditedReport.php
+++ b/code/Reports/RecentlyEditedReport.php
@ -31,7 +31,7 @@ class RecentlyEditedReport extends Report
        $threshold = strtotime('-14 days', DBDatetime::now()->getTimestamp());
        return SiteTree::get()
            ->filter('LastEdited:GreaterThan', date("Y-m-d H:i:s", $threshold))
-            ->sort("\"$tableName\".\"LastEdited\" DESC");
+            ->orderBy("\"$tableName\".\"LastEdited\" DESC");
    }

    public function columns()
--- a/code/Search/ContentControllerSearchExtension.php
+++ b/code/Search/ContentControllerSearchExtension.php
@ -39,7 +39,6 @@ class ContentControllerSearchExtension extends Extension
        $actions = FieldList::create(
            FormAction::create('results', _t('SilverStripe\\CMS\\Search\\SearchForm.GO', 'Go'))
        );
-        /** @skipUpgrade */
        $form = SearchForm::create($this->owner, 'SearchForm', $fields, $actions);
        $form->classesToSearch(FulltextSearchable::get_searchable_classes());
        return $form;
--- a/code/Search/SearchForm.php
+++ b/code/Search/SearchForm.php
@ -13,17 +13,11 @@ use SilverStripe\Forms\HiddenField;
 use SilverStripe\Forms\TextField;
 use SilverStripe\ORM\DB;
 use SilverStripe\ORM\SS_List;
-use Translatable;

 /**
 * Standard basic search form which conducts a fulltext search on all {@link SiteTree}
 * objects.
 *
- * If multilingual content is enabled through the {@link Translatable} extension,
- * only pages the currently set language on the holder for this searchform are found.
- * The language is set through a hidden field in the form, which is prepoluated
- * with {@link Translatable::get_current_locale()} when then form is constructed.
- *
 * @see Use ModelController and SearchContext for a more generic search implementation based around DataObject
 */
 class SearchForm extends Form
@ -51,7 +45,6 @@ class SearchForm extends Form
    ];

    /**
-     * @skipUpgrade
     * @param RequestHandler $controller
     * @param string $name The name of the form (used in URL addressing)
     * @param FieldList $fields Optional, defaults to a single field named "Search". Search logic needs to be customized
@ -70,12 +63,6 @@ class SearchForm extends Form
            );
        }

-        if (class_exists('Translatable')
-            && SiteTree::singleton()->hasExtension('Translatable')
-        ) {
-            $fields->push(new HiddenField('searchlocale', 'searchlocale', Translatable::get_current_locale()));
-        }
-
        if (!$actions) {
            $actions = new FieldList(
                new FormAction("results", _t(__CLASS__.'.GO', 'Go'))
@ -130,22 +117,6 @@ class SearchForm extends Form
        // Get request data from request handler
        $request = $this->getRequestHandler()->getRequest();

-        // set language (if present)
-        $locale = null;
-        $origLocale = null;
-        if (class_exists('Translatable')) {
-            $locale = $request->requestVar('searchlocale');
-            if (SiteTree::singleton()->hasExtension('Translatable') && $locale) {
-                if ($locale === "ALL") {
-                    Translatable::disable_locale_filter();
-                } else {
-                    $origLocale = Translatable::get_current_locale();
-
-                    Translatable::set_current_locale($locale);
-                }
-            }
-        }
-
        $keywords = $request->requestVar('Search');

        $andProcessor = function ($matches) {
@ -181,17 +152,6 @@ class SearchForm extends Form
            }
        }

-        // reset locale
-        if (class_exists('Translatable')) {
-            if (SiteTree::singleton()->hasExtension('Translatable') && $locale) {
-                if ($locale == "ALL") {
-                    Translatable::enable_locale_filter();
-                } else {
-                    Translatable::set_current_locale($origLocale);
-                }
-            }
-        }
-
        return $results;
    }

--- a/code/Tasks/MigrateSiteTreeLinkingTask.php
+++ b/code/Tasks/MigrateSiteTreeLinkingTask.php
@ -1,70 +0,0 @@
-<?php
-
-namespace SilverStripe\CMS\Tasks;
-
-use SilverStripe\CMS\Model\SiteTree;
-use SilverStripe\Dev\BuildTask;
-use SilverStripe\Dev\Debug;
-use SilverStripe\Dev\Deprecation;
-use SilverStripe\ORM\DataObject;
-use SilverStripe\ORM\DB;
-use SilverStripe\Versioned\Versioned;
-
-/**
- * Updates legacy SiteTree link tracking into new polymorphic many_many relation.
- * This should be done for any site upgrading to 4.2.0
- *
- * @deprecated 4.13.0 Will be removed without equivalent functionality to replace it
- */
-class MigrateSiteTreeLinkingTask extends BuildTask
-{
-    private static $segment = 'MigrateSiteTreeLinkingTask';
-
-    protected $title = 'Migrate SiteTree Linking Task';
-
-    protected $description = 'Updates legacy SiteTree link tracking into new polymorphic many_many relation';
-
-    public function __construct()
-    {
-        Deprecation::notice(
-            '4.13.0',
-            'Will be removed without equivalent functionality to replace it',
-            Deprecation::SCOPE_CLASS
-        );
-    }
-
-    public function run($request)
-    {
-        // Ensure legacy table exists
-        $exists = DB::get_conn()->getSchemaManager()->hasTable('SiteTree_LinkTracking');
-        if (!$exists) {
-            DB::alteration_message("Table SiteTree_LinkTracking has already been migrated, or doesn't exist");
-            return;
-        }
-
-        $pages = 0;
-
-        // Ensure sync occurs on draft
-        Versioned::withVersionedMode(function () use (&$pages) {
-            Versioned::set_stage(Versioned::DRAFT);
-
-            $sitetreeTbl = DataObject::singleton(SiteTree::class)->baseTable();
-
-            /** @var SiteTree[] $linkedPages */
-            $linkedPages = SiteTree::get()
-                ->innerJoin(
-                    'SiteTree_LinkTracking',
-                    "\"SiteTree_LinkTracking\".\"SiteTreeID\" = \"$sitetreeTbl\".\"ID\""
-                );
-            foreach ($linkedPages as $page) {
-                // Command page to update symlink tracking
-                $page->syncLinkTracking();
-                $pages++;
-            }
-        });
-        DB::alteration_message("Migrated page links on " . SiteTree::singleton()->i18n_pluralise($pages));
-
-        // Disable table to prevent double-migration
-        DB::dont_require_table('SiteTree_LinkTracking');
-    }
-}
--- a/code/Tasks/RemoveOrphanedPagesTask.php
+++ b/code/Tasks/RemoveOrphanedPagesTask.php
@ -1,388 +0,0 @@
-<?php
-
-namespace SilverStripe\CMS\Tasks;
-
-use SilverStripe\CMS\Model\SiteTree;
-use SilverStripe\Control\Controller;
-use SilverStripe\Forms\CheckboxSetField;
-use SilverStripe\Forms\FieldList;
-use SilverStripe\Forms\Form;
-use SilverStripe\Forms\FormAction;
-use SilverStripe\Forms\HeaderField;
-use SilverStripe\Forms\LiteralField;
-use SilverStripe\Forms\OptionsetField;
-use SilverStripe\ORM\ArrayList;
-use SilverStripe\ORM\DataObject;
-use SilverStripe\ORM\SS_List;
-use SilverStripe\Versioned\Versioned;
-use SilverStripe\Security\Permission;
-use SilverStripe\Security\Security;
-use SilverStripe\View\Requirements;
-use SilverStripe\Dev\Deprecation;
-
-/**
- * Identify "orphaned" pages which point to a parent
- * that no longer exists in a specific stage.
- * Shows the pages to an administrator, who can then
- * decide which pages to remove by ticking a checkbox
- * and manually executing the removal.
- *
- * Caution: Pages also count as orphans if they don't
- * have parents in this stage, even if the parent has a representation
- * in the other stage:
- * - A live child is orphaned if its parent was deleted from live, but still exists on stage
- * - A stage child is orphaned if its parent was deleted from stage, but still exists on live
- *
- * See {@link RemoveOrphanedPagesTaskTest} for an example sitetree
- * before and after orphan removal.
- *
- * @author Ingo Schommer (<firstname>@silverstripe.com), SilverStripe Ltd.
- *
- * @deprecated 4.13.0 Will be removed without equivalent functionality to replace it
- */
-class RemoveOrphanedPagesTask extends Controller
-{
-
-    private static $allowed_actions = [
-        'index' => 'ADMIN',
-        'Form' => 'ADMIN',
-        'run' => 'ADMIN',
-        'handleAction' => 'ADMIN',
-    ];
-
-    protected $title = 'Removed orphaned pages without existing parents from both stage and live';
-
-    protected $description = "
-<p>
-Identify 'orphaned' pages which point to a parent
-that no longer exists in a specific stage.
-</p>
-<p>
-Caution: Pages also count as orphans if they don't
-have parents in this stage, even if the parent has a representation
-in the other stage:<br />
- A live child is orphaned if its parent was deleted from live, but still exists on stage<br />
- A stage child is orphaned if its parent was deleted from stage, but still exists on live
-</p>
-	";
-
-    protected $orphanedSearchClass = SiteTree::class;
-
-    public function __construct()
-    {
-        Deprecation::notice(
-            '4.13.0',
-            'Will be removed without equivalent functionality to replace it',
-            Deprecation::SCOPE_CLASS
-        );
-    }
-
-    protected function init()
-    {
-        parent::init();
-
-        if (!Permission::check('ADMIN')) {
-            Security::permissionFailure($this);
-        }
-    }
-
-    public function Link($action = null)
-    {
-        /** @skipUpgrade */
-        return Controller::join_links('RemoveOrphanedPagesTask', $action, '/');
-    }
-
-    public function index()
-    {
-        Requirements::javascript('http://code.jquery.com/jquery-1.7.2.min.js');
-        Requirements::customCSS('#OrphanIDs .middleColumn {width: auto;}');
-        Requirements::customCSS('#OrphanIDs label {display: inline;}');
-
-        return $this->renderWith('BlankPage');
-    }
-
-    public function Form()
-    {
-        $fields = new FieldList();
-        $source = [];
-
-        $fields->push(new HeaderField(
-            'Header',
-            _t(__CLASS__ . '.HEADER', 'Remove all orphaned pages task')
-        ));
-        $fields->push(new LiteralField(
-            'Description',
-            $this->description
-        ));
-
-        $orphans = $this->getOrphanedPages($this->orphanedSearchClass);
-        if ($orphans) {
-            foreach ($orphans as $orphan) {
-                        /** @var SiteTree $latestVersion */
-                $latestVersion = Versioned::get_latest_version($this->orphanedSearchClass, $orphan->ID);
-                $latestAuthor = DataObject::get_by_id('SilverStripe\\Security\\Member', $latestVersion->AuthorID);
-                $orphanBaseTable = DataObject::getSchema()->baseDataTable($this->orphanedSearchClass);
-                $liveRecord = Versioned::get_one_by_stage(
-                    $this->orphanedSearchClass,
-                    'Live',
-                    ["\"$orphanBaseTable\".\"ID\"" => $orphan->ID]
-                );
-                            $label = sprintf(
-                                '<a href="admin/pages/edit/show/%d">%s</a> <small>(#%d, Last Modified Date: %s, Last Modifier: %s, %s)</small>',
-                                $orphan->ID,
-                                $orphan->Title,
-                                $orphan->ID,
-                                $orphan->dbObject('LastEdited')->Nice(),
-                                ($latestAuthor) ? $latestAuthor->Title : 'unknown',
-                                ($liveRecord) ? 'is published' : 'not published'
-                            );
-                            $source[$orphan->ID] = $label;
-            }
-        }
-
-        if ($orphans && $orphans->count()) {
-            $fields->push(new CheckboxSetField('OrphanIDs', false, $source));
-            $fields->push(new LiteralField(
-                'SelectAllLiteral',
-                sprintf(
-                    '<p><a href="#" onclick="javascript:jQuery(\'#Form_Form_OrphanIDs :checkbox\').attr(\'checked\', \'checked\'); return false;">%s</a>&nbsp;',
-                    _t(__CLASS__ . '.SELECTALL', 'select all')
-                )
-            ));
-            $fields->push(new LiteralField(
-                'UnselectAllLiteral',
-                sprintf(
-                    '<a href="#" onclick="javascript:jQuery(\'#Form_Form_OrphanIDs :checkbox\').attr(\'checked\', \'\'); return false;">%s</a></p>',
-                    _t(__CLASS__ . '.UNSELECTALL', 'unselect all')
-                )
-            ));
-            $fields->push(new OptionsetField(
-                'OrphanOperation',
-                _t('SilverStripe\\CMS\\Tasks\\RemoveOrphanedPagesTask.CHOOSEOPERATION', 'Choose operation:'),
-                [
-                    'rebase' => _t(
-                        __CLASS__ . '.OPERATION_REBASE',
-                        sprintf(
-                            'Rebase selected to a new holder page "%s" and unpublish. None of these pages will show up for website visitors.',
-                            $this->rebaseHolderTitle()
-                        )
-                    ),
-                    'remove' => _t(__CLASS__ . '.OPERATION_REMOVE', 'Remove selected from all stages (WARNING: Will destroy all selected pages from both stage and live)'),
-                ],
-                'rebase'
-            ));
-            $fields->push(new LiteralField(
-                'Warning',
-                sprintf(
-                    '<p class="message">%s</p>',
-                    _t(
-                        __CLASS__ . '.DELETEWARNING',
-                        'Warning: These operations are not reversible. Please handle with care.'
-                    )
-                )
-            ));
-        } else {
-            $fields->push(new LiteralField(
-                'NotFoundLabel',
-                sprintf(
-                    '<p class="message">%s</p>',
-                    _t(__CLASS__ . '.NONEFOUND', 'No orphans found')
-                )
-            ));
-        }
-
-        $form = new Form(
-            $this,
-            'SilverStripe\\Forms\\Form',
-            $fields,
-            new FieldList(
-                new FormAction('doSubmit', _t(__CLASS__ . '.BUTTONRUN', 'Run'))
-            )
-        );
-
-        if (!$orphans || !$orphans->count()) {
-            $form->makeReadonly();
-        }
-
-        return $form;
-    }
-
-    public function run($request)
-    {
-        // @todo Merge with BuildTask functionality
-    }
-
-    public function doSubmit($data, $form)
-    {
-        set_time_limit(60*10); // 10 minutes
-
-        if (!isset($data['OrphanIDs']) || !isset($data['OrphanOperation'])) {
-            return false;
-        }
-
-        $successIDs = null;
-        switch ($data['OrphanOperation']) {
-            case 'remove':
-                $successIDs = $this->removeOrphans($data['OrphanIDs']);
-                break;
-            case 'rebase':
-                $successIDs = $this->rebaseOrphans($data['OrphanIDs']);
-                break;
-            default:
-                throw new \InvalidArgumentException(sprintf("Unknown operation: '%s'", $data['OrphanOperation']));
-        }
-
-        $content = '';
-        if ($successIDs) {
-            $content .= "<ul>";
-            foreach ($successIDs as $id => $label) {
-                $content .= sprintf('<li>%s</li>', $label);
-            }
-            $content .= "</ul>";
-        } else {
-            $content = _t(__CLASS__ . '.NONEREMOVED', 'None removed');
-        }
-
-        return $this->customise([
-            'Content' => $content,
-            'Form' => ' '
-        ])->renderWith('BlankPage');
-    }
-
-    protected function removeOrphans($orphanIDs)
-    {
-        $removedOrphans = [];
-        $orphanBaseTable = DataObject::getSchema()->baseDataTable($this->orphanedSearchClass);
-        foreach ($orphanIDs as $id) {
-            /** @var SiteTree $stageRecord */
-            $stageRecord = Versioned::get_one_by_stage(
-                $this->orphanedSearchClass,
-                Versioned::DRAFT,
-                ["\"$orphanBaseTable\".\"ID\"" => $id]
-            );
-            if ($stageRecord) {
-                $removedOrphans[$stageRecord->ID] = sprintf('Removed %s (#%d) from Stage', $stageRecord->Title, $stageRecord->ID);
-                $stageRecord->delete();
-                $stageRecord->destroy();
-                unset($stageRecord);
-            }
-            /** @var SiteTree $liveRecord */
-            $liveRecord = Versioned::get_one_by_stage(
-                $this->orphanedSearchClass,
-                Versioned::LIVE,
-                ["\"$orphanBaseTable\".\"ID\"" => $id]
-            );
-            if ($liveRecord) {
-                $removedOrphans[$liveRecord->ID] = sprintf('Removed %s (#%d) from Live', $liveRecord->Title, $liveRecord->ID);
-                $liveRecord->doUnpublish();
-                $liveRecord->destroy();
-                unset($liveRecord);
-            }
-        }
-
-        return $removedOrphans;
-    }
-
-    protected function rebaseHolderTitle()
-    {
-        return sprintf('Rebased Orphans (%s)', date('d/m/Y g:ia', time()));
-    }
-
-    protected function rebaseOrphans($orphanIDs)
-    {
-        $holder = new SiteTree();
-        $holder->ShowInMenus = 0;
-        $holder->ShowInSearch = 0;
-        $holder->ParentID = 0;
-        $holder->Title = $this->rebaseHolderTitle();
-        $holder->write();
-
-        $removedOrphans = [];
-        $orphanBaseTable = DataObject::getSchema()->baseDataTable($this->orphanedSearchClass);
-        foreach ($orphanIDs as $id) {
-            /** @var SiteTree $stageRecord */
-            $stageRecord = Versioned::get_one_by_stage(
-                $this->orphanedSearchClass,
-                'Stage',
-                ["\"$orphanBaseTable\".\"ID\"" => $id]
-            );
-            if ($stageRecord) {
-                $removedOrphans[$stageRecord->ID] = sprintf('Rebased %s (#%d)', $stageRecord->Title, $stageRecord->ID);
-                $stageRecord->ParentID = $holder->ID;
-                $stageRecord->ShowInMenus = 0;
-                $stageRecord->ShowInSearch = 0;
-                $stageRecord->write();
-                $stageRecord->doUnpublish();
-                $stageRecord->destroy();
-                //unset($stageRecord);
-            }
-            /** @var SiteTree $liveRecord */
-            $liveRecord = Versioned::get_one_by_stage(
-                $this->orphanedSearchClass,
-                'Live',
-                ["\"$orphanBaseTable\".\"ID\"" => $id]
-            );
-            if ($liveRecord) {
-                $removedOrphans[$liveRecord->ID] = sprintf('Rebased %s (#%d)', $liveRecord->Title, $liveRecord->ID);
-                $liveRecord->ParentID = $holder->ID;
-                $liveRecord->ShowInMenus = 0;
-                $liveRecord->ShowInSearch = 0;
-                $liveRecord->write();
-                if (!$stageRecord) {
-                    $liveRecord->doRestoreToStage();
-                }
-                $liveRecord->doUnpublish();
-                $liveRecord->destroy();
-                unset($liveRecord);
-            }
-            if ($stageRecord) {
-                unset($stageRecord);
-            }
-        }
-
-        return $removedOrphans;
-    }
-
-    /**
-     * Gets all orphans from "Stage" and "Live" stages.
-     *
-     * @param string $class
-     * @param array $filter
-     * @param string $sort
-     * @param string $join
-     * @param int|array $limit
-     * @return SS_List
-     */
-    public function getOrphanedPages($class = SiteTree::class, $filter = [], $sort = null, $join = null, $limit = null)
-    {
-        // Alter condition
-        $table = DataObject::getSchema()->tableName($class);
-        if (empty($filter)) {
-            $where = [];
-        } elseif (is_array($filter)) {
-            $where = $filter;
-        } else {
-            $where = [$filter];
-        }
-        $where[] = ["\"{$table}\".\"ParentID\" != ?" => 0];
-        $where[] = '"Parents"."ID" IS NULL';
-
-        $orphans = new ArrayList();
-        foreach ([Versioned::DRAFT, Versioned::LIVE] as $stage) {
-            $table .= ($stage == Versioned::LIVE) ? '_Live' : '';
-            $stageOrphans = Versioned::get_by_stage(
-                $class,
-                $stage,
-                $where,
-                $sort,
-                null,
-                $limit
-            )->leftJoin($table, "\"$table\".\"ParentID\" = \"Parents\".\"ID\"", "Parents");
-            $orphans->merge($stageOrphans);
-        }
-
-        $orphans->removeDuplicates();
-
-        return $orphans;
-    }
-}
--- a/code/Tasks/SiteTreeMaintenanceTask.php
+++ b/code/Tasks/SiteTreeMaintenanceTask.php
@ -1,61 +0,0 @@
-<?php
-
-namespace SilverStripe\CMS\Tasks;
-
-use SilverStripe\CMS\Model\SiteTree;
-use SilverStripe\Control\Controller;
-use SilverStripe\ORM\DB;
-use SilverStripe\ORM\DataObject;
-use SilverStripe\Dev\Deprecation;
-
-/**
- * @deprecated 4.13.0 Will be removed without equivalent functionality to replace it
- */
-class SiteTreeMaintenanceTask extends Controller
-{
-    private static $allowed_actions = [
-        '*' => 'ADMIN'
-    ];
-
-    public function __construct()
-    {
-        Deprecation::notice(
-            '4.13.0',
-            'Will be removed without equivalent functionality to replace it',
-            Deprecation::SCOPE_CLASS
-        );
-    }
-
-    public function makelinksunique()
-    {
-        $table = DataObject::singleton(SiteTree::class)->baseTable();
-        $badURLs = "'" . implode("', '", DB::query("SELECT \"URLSegment\", count(*) FROM \"$table\" GROUP BY \"URLSegment\" HAVING count(*) > 1")->column()) . "'";
-        $pages = DataObject::get(SiteTree::class, "\"$table\".\"URLSegment\" IN ($badURLs)");
-
-        foreach ($pages as $page) {
-            echo "<li>$page->Title: ";
-            $urlSegment = $page->URLSegment;
-            $page->write();
-            if ($urlSegment != $page->URLSegment) {
-                echo _t(
-                    'SilverStripe\\CMS\\Model\\SiteTree.LINKSCHANGEDTO',
-                    " changed {url1} -> {url2}",
-                    ['url1' => $urlSegment, 'url2' => $page->URLSegment]
-                );
-            } else {
-                echo _t(
-                    'SilverStripe\\CMS\\Model\\SiteTree.LINKSALREADYUNIQUE',
-                    " {url} is already unique",
-                    ['url' => $urlSegment]
-                );
-            }
-            die();
-        }
-    }
-
-    public function Link($action = null)
-    {
-        /** @skipUpgrade */
-        return Controller::join_links('SiteTreeMaintenanceTask', $action, '/');
-    }
-}
--- a/composer.json
+++ b/composer.json
@ -19,19 +19,19 @@
        }
    ],
    "require": {
-        "silverstripe/admin": "^1.13@dev",
-        "silverstripe/campaign-admin": "^1.7@dev",
-        "silverstripe/framework": "^4.11",
-        "silverstripe/reports": "^4.7@dev",
-        "silverstripe/siteconfig": "^4.7@dev",
-        "silverstripe/versioned": "^1.7@dev",
-        "silverstripe/versioned-admin": "^1.7@dev",
-        "silverstripe/vendor-plugin": "^1.0",
-        "php": "^7.4 || ^8.0"
+        "php": "^8.1",
+        "silverstripe/admin": "^2",
+        "silverstripe/campaign-admin": "^2",
+        "silverstripe/framework": "^5",
+        "silverstripe/reports": "^5",
+        "silverstripe/siteconfig": "^5",
+        "silverstripe/versioned": "^2",
+        "silverstripe/versioned-admin": "^2",
+        "silverstripe/vendor-plugin": "^2"
    },
    "require-dev": {
-        "phpunit/phpunit": "^9.5",
-        "squizlabs/php_codesniffer": "^3"
+        "phpunit/phpunit": "^9.6",
+        "squizlabs/php_codesniffer": "^3.7"
    },
    "extra": {
        "expose": [
--- a/lang/en.yml
+++ b/lang/en.yml
@ -114,8 +114,6 @@ en:
  SilverStripe\CMS\Controllers\CMSSiteTreeFilter_StatusRemovedFromDraftPages:
    Title: 'Live but removed from draft'
  SilverStripe\CMS\Controllers\ContentController:
-    ARCHIVEDSITE: 'Preview version'
-    ARCHIVEDSITEFROM: 'Archived site from'
    CMS: CMS
    DRAFT: Draft
    DRAFTSITE: 'Draft Site'
@ -134,11 +132,8 @@ en:
    Password: Password
    PostInstallTutorialIntro: 'This website is a simplistic version of a SilverStripe 3 site. To extend this, please take a look at {link}.'
    StartEditing: 'You can start editing your content by opening <a href="{link}">the CMS</a>.'
-    UNVERSIONEDPREVIEW: Preview
    UnableDeleteInstall: 'Unable to delete installation files. Please delete the files below manually'
    VIEWPAGEIN: 'View Page in:'
-  SilverStripe\CMS\Controllers\SilverStripeNavigator:
-    ARCHIVED: Archived
  SilverStripe\CMS\Forms\AnchorLinkFormFactory:
    ANCHORVALUE: Anchor
  SilverStripe\CMS\Forms\InternalLinkFormFactory:
--- a/package.json
+++ b/package.json
@ -1,15 +1,15 @@
 {
  "name": "silverstripe-cms",
-  "version": "4.0.0",
+  "version": "5.0.0",
  "description": "The SilverStripe CMS",
  "directories": {
    "test": "tests"
  },
  "engines": {
-    "node": "^10.x"
+    "node": "^18.x"
  },
  "scripts": {
-    "build": "yarn && yarn test && NODE_ENV=production webpack -p --bail --progress",
+    "build": "yarn && yarn lint && yarn test && rm -rf client/dist/* && NODE_ENV=production webpack --mode production --bail --progress",
    "dev": "NODE_ENV=development webpack --progress",
    "watch": "NODE_ENV=development webpack --watch --progress",
    "css": "WEBPACK_CHILD=css npm run build",
@ -32,36 +32,42 @@
  },
  "homepage": "https://github.com/silverstripe/silverstripe-cms#readme",
  "dependencies": {
-    "@silverstripe/reactstrap-confirm": "0.0.5",
-    "apollo-client": "^2.4.2",
-    "bootstrap": "^4.3.1",
-    "classnames": "^2.2.5",
+    "@apollo/client": "^3.7.1",
+    "@popperjs/core": "^2.11.6",
+    "bootstrap": "^4.6.2",
+    "classnames": "^2.3.2",
    "deep-freeze-strict": "^1.1.1",
-    "graphql": "^14.0.0",
-    "graphql-tag": "^2.10.0",
-    "isomorphic-fetch": "^2.2.1",
-    "jquery": "^3.5.0",
+    "graphql": "^16.6.0",
+    "graphql-tag": "^2.12.6",
+    "isomorphic-fetch": "^3.0.0",
    "merge": "^2.1.1",
-    "popper.js": "^1.14.4",
-    "prop-types": "^15.6.2",
-    "react": "^16.6.1",
-    "react-apollo": "^2.1.11",
-    "react-dom": "^16.6.1",
-    "react-redux": "^5.0.7",
-    "react-select": "^1.3",
-    "reactstrap": "^6.4.0",
-    "redux": "^4.0.0",
-    "redux-form": "^7.4.2"
+    "prop-types": "^15.8.1",
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0",
+    "react-redux": "^8.0.5",
+    "react-select": "^5.6.0",
+    "reactstrap": "^8.9.0",
+    "reactstrap-confirm": "^1.3.2",
+    "redux": "^4.2.0",
+    "redux-form": "^8.3.8"
  },
  "devDependencies": {
-    "@silverstripe/eslint-config": "^0.1.0",
-    "@silverstripe/webpack-config": "^1.3.0",
-    "babel-jest": "^23.6.0",
-    "babel-polyfill": "^6.26.0",
-    "copy-webpack-plugin": "^4",
-    "jest-cli": "^23.6.0"
+    "@silverstripe/eslint-config": "^1.0.0",
+    "@silverstripe/webpack-config": "^2.0.0",
+    "@testing-library/react": "^14.0.0",
+    "babel-jest": "^29.3.0",
+    "copy-webpack-plugin": "^11.0.0",
+    "core-js": "^3.26.0",
+    "jest-cli": "^29.3.0",
+    "jest-environment-jsdom": "^29.3.1",
+    "webpack": "^5.74.0",
+    "webpack-cli": "^5.0.0"
  },
+  "browserslist": [
+    "defaults"
+  ],
  "jest": {
+    "testEnvironment": "jsdom",
    "roots": [
      "client/src"
    ],
@ -82,16 +88,6 @@
    }
  },
  "resolutions": {
-    "colors": "1.1.2",
-    "eslint": "^4.6.1"
-  },
-  "babel": {
-    "presets": [
-      "env",
-      "react"
-    ],
-    "plugins": [
-      "transform-object-rest-spread"
-    ]
+    "colors": "1.4.0"
  }
 }
--- a/0
+++ b/0
--- a/templates/SilverStripe/CMS/Controllers/Includes/CMSMain_PreviewPanel.ss
+++ b/templates/SilverStripe/CMS/Controllers/Includes/CMSMain_PreviewPanel.ss
@ -1,16 +0,0 @@
-<div class="cms-preview fill-height flexbox-area-grow" data-layout-type="border">
-	<div class="panel flexbox-area-grow fill-height">
-		<div class="preview-note">
-            <div class="icon font-icon-monitor display-1"></div>
-            <%t SilverStripe\CMS\Controllers\CMSPageHistoryController.NO_PREVIEW 'No preview available' %>
-        </div>
-		<div class="preview__device">
-			<div class="preview-device-outer">
-				<div class="preview-device-inner">
-					<iframe src="about:blank" class="center" name="cms-preview-iframe"></iframe>
-				</div>
-			</div>
-		</div>
-	</div>
-	<div class="toolbar toolbar--south cms-content-controls cms-preview-controls"></div>
-</div>
--- a/templates/SilverStripe/CMS/Model/Includes/SiteTreeFileExtension_description.ss
+++ b/templates/SilverStripe/CMS/Model/Includes/SiteTreeFileExtension_description.ss
@ -1,27 +0,0 @@
-<% if $BackLinkTracking %>
-    <table class="table">
-        <thead>
-        <tr>
-            <th><%t SilverStripe\CMS\Model\SiteTreeFileExtension.TITLE_INDEX '#' %></th>
-            <th><%t SilverStripe\CMS\Model\SiteTreeFileExtension.TITLE_USED_ON 'Used on' %></th>
-            <th><%t SilverStripe\CMS\Model\SiteTreeFileExtension.TITLE_TYPE 'Type' %></th>
-        </tr>
-        </thead>
-        <tbody>
-        <% loop $BackLinkTracking %>
-            <tr>
-                <td>$Pos</td>
-                <td><a href="$CMSEditLink">$MenuTitle</a></td>
-                <td>
-                    $i18n_singular_name
-                    <% if $isPublished %>
-                        <span class="badge badge-success">Published</span>
-                    <% else %>
-                        <span class="badge status-addedtodraft">Draft</span>
-                    <% end_if %>
-                </td>
-            </tr>
-        <% end_loop %>
-        </tbody>
-    </table>
-<% end_if %>
--- a/tests/behat/features/edit-a-page.feature
+++ b/tests/behat/features/edit-a-page.feature
@ -64,7 +64,7 @@ Feature: Edit a page
    Then I should see "About Us"
    And I go to "/about-modified-us"
    Then I should not see "About Us"
-    
+
    # Assert URL segment + metadata on frontend
    When I go to "/admin/pages"
    And I click on "About Us" in the tree
@ -81,19 +81,19 @@ Feature: Edit a page
    When I click on "About Us" in the tree

    # Embed files from the "Files" section of the admin area
-    And I click on the "div[aria-label='Insert from Files'] button" element
+    And I press the "Insert from Files" HTML field button
    And I click on the ".gallery__files .gallery-item__thumbnail" element
    And I press the "Insert file" button

    # Link to a file in the "Files" section of the admin area
-    And I click on the "div[aria-label='Insert link [Ctrl+K]'] button" element
-    And I select "Link to a file" from the TinyMCE menu with javascript
+    And I press the "Insert link" HTML field button
+    And I click "Link to a file" in the ".tox-collection__group" element
    And I click on the ".gallery__files .gallery-item__thumbnail" element
    And I fill in "Form_fileInsertForm_Text" with "MyImage"
    And I press the "Link to file" button

    # Embed media from a URL
-    And I click on the "div[aria-label='Insert media via URL'] button" element
+    And I press the "Insert media via URL" button
    And I fill in "Form_remoteCreateForm_Url" with "https://www.youtube.com/watch?v=ScMzIvxBSi4"
    And I press "Add media"
    And I wait for 15 seconds
--- a/tests/behat/features/insert-a-link.feature
+++ b/tests/behat/features/insert-a-link.feature
@ -17,12 +17,11 @@ So that I can link to a external website or a page on my site
  Scenario: I can link to an internal page
    When I select "awesome" in the "Content" HTML field
      And I press the "Insert link" HTML field button
-      And I click "Page on this site" in the ".mce-menu" element
+      And I click "Page on this site" in the ".tox-collection__group" element
    Then I should see an "form#Form_editorInternalLink" element
-    When I click "(Search or choose Page)" in the ".Select-multi-value-wrapper" element
-      And I click "About Us" in the ".treedropdownfield__menu" element
+    When I select "About Us" in the "#Form_editorInternalLink_PageID_Holder" tree dropdown
      And I fill in "my desc" for "Link description"
-      And I press the "Insert" button
+      And I press the "Insert link" button
    Then the "Content" HTML field should contain "<a title="my desc" href="[sitetree_link,id=2]">awesome</a>"
    # Required to avoid "unsaved changes" browser dialog
    Then I press the "Save" button
@ -31,12 +30,11 @@ So that I can link to a external website or a page on my site
    Given I fill in the "Content" HTML field with "<p><img src='file1.jpg'></p>"
    When I select the image "file1.jpg" in the "Content" HTML field
      And I press the "Insert link" HTML field button
-      And I click "Page on this site" in the ".mce-menu" element
+      And I click "Page on this site" in the ".tox-collection__group" element
    Then I should see an "form#Form_editorInternalLink" element
      And I should not see "Link text"
-    When I click "(Search or choose Page)" in the ".Select-multi-value-wrapper" element
-      And I click "About Us" in the ".treedropdownfield__menu" element
-      And I press the "Insert" button
+    When I select "About Us" in the "#Form_editorInternalLink_PageID_Holder" tree dropdown
+      And I press the "Insert link" button
    Then the "Content" HTML field should contain "<a href="[sitetree_link,id=2]"><img src="file1.jpg"></a>"
      # Required to avoid "unsaved changed" browser dialog
      And I press the "Save" button
@ -45,15 +43,14 @@ So that I can link to a external website or a page on my site
    Given I fill in the "Content" HTML field with "<a title='my desc' href='[sitetree_link,id=2]'>awesome</a>"
      And I select "awesome" in the "Content" HTML field
      And I press the "Insert link" HTML field button
-      And I click "Page on this site" in the ".mce-menu" element
+      And I click "Page on this site" in the ".tox-collection__group" element
      And I should see an "form#Form_editorInternalLink" element
-    Then I should see "About Us" in the ".Select-value" element
+    Then I should see "About Us" in the "#Form_editorInternalLink_PageID_Holder .treedropdownfield__value-container" element
      And the "Link description" field should contain "my desc"
    # This doesn't seem to suffer from that issue
-    When I click "About Us" in the ".Select-value" element
-      And I click "Home" in the ".treedropdownfield__menu" element
+    When I select "Home" in the "#Form_editorInternalLink_PageID_Holder" tree dropdown
      And I fill in "my new desc" for "Link description"
-      And I press the "Insert" button
+      And I press the "Insert link" button
    Then the "Content" HTML field should contain "<a title="my new desc" href="[sitetree_link,id=1]">awesome</a>"
    # Required to avoid "unsaved changes" browser dialog
    Then I press the "Save" button
@ -61,11 +58,11 @@ So that I can link to a external website or a page on my site
  Scenario: I can link to an external URL
    Given I select "awesome" in the "Content" HTML field
      And I press the "Insert link" HTML field button
-    When I click "Link to external URL" in the ".mce-menu" element
+    When I click "Link to external URL" in the ".tox-collection__group" element
      And I should see an "form#Form_ModalsEditorExternalLink" element
    When I fill in "http://silverstripe.org" for "URL"
      And I check "Open in new window/tab"
-      And I press the "Insert" button
+      And I press the "Insert link" button
    Then the "Content" HTML field should contain "<a rel="noopener" href="http://silverstripe.org" target="_blank">awesome</a>"
    # Required to avoid "unsaved changes" browser dialog
    Then I press the "Save" button
@ -74,11 +71,11 @@ So that I can link to a external website or a page on my site
    Given I fill in the "Content" HTML field with "<p><img src='file1.jpg'></p>"
    When I select the image "file1.jpg" in the "Content" HTML field
      And I press the "Insert link" HTML field button
-    When I click "Link to external URL" in the ".mce-menu" element
+    When I click "Link to external URL" in the ".tox-collection__group" element
      And I should see an "form#Form_ModalsEditorExternalLink" element
      And I should not see "Link text"
    When I fill in "http://silverstripe.org" for "URL"
-      And I press the "Insert" button
+      And I press the "Insert link" button
    Then the "Content" HTML field should contain "<a href="http://silverstripe.org"><img src="file1.jpg"></a>"
      # Required to avoid "unsaved changed" browser dialog
      And I press the "Save" button
@ -87,12 +84,12 @@ So that I can link to a external website or a page on my site
    Given I fill in the "Content" HTML field with "<p>My <a href='http://silverstripe.org'>awesome</a> content"
      And I select "awesome" in the "Content" HTML field
    When I press the "Insert link" HTML field button
-      And I click "Link to external URL" in the ".mce-menu" element
+      And I click "Link to external URL" in the ".tox-collection__group" element
      And I should see an "form#Form_ModalsEditorExternalLink" element
    Then the "URL" field should contain "http://silverstripe.org"
    # This doesn't seem to suffer from that issue
    When I fill in "http://google.com" for "URL"
-    And I press the "Insert" button
+    And I press the "Insert link" button
    Then the "Content" HTML field should contain "<a href="http://google.com">awesome</a>"
    # Required to avoid "unsaved changes" browser dialog
    Then I press the "Save" button
--- a/tests/behat/features/insert-anchor-link.feature
+++ b/tests/behat/features/insert-anchor-link.feature
@ -17,16 +17,14 @@ So that I can link to a external website or a page on my site
  Scenario: I can link to an anchor in an internal page
    When I select "awesome" in the "Content" HTML field
      And I press the "Insert link" HTML field button
-      And I click "Anchor on a page" in the ".mce-menu" element
+      And I click "Anchor on a page" in the ".tox-collection__group" element
    Then I should see an "form#Form_editorAnchorLink" element
-      And I should see "About Us" in the "#Form_editorAnchorLink_PageID_Holder .Select-multi-value-wrapper" element
-    When I click "About Us" in the "#Form_editorAnchorLink_PageID_Holder .Select-multi-value-wrapper" element
-      And I click "Details" in the "#Form_editorAnchorLink_PageID_Holder .Select-menu-outer" element
-      And I click "Select or enter anchor" in the "#Form_editorAnchorLink_Anchor_Holder .Select-multi-value-wrapper" element
-      And I click "youranchor" in the "#Form_editorAnchorLink_Anchor_Holder .Select-menu-outer" element
-    Then I should see "youranchor" in the "#Form_editorAnchorLink_Anchor_Holder .Select-value" element
+      And I should see "About Us" in the "#Form_editorAnchorLink_PageID_Holder .treedropdownfield__value-container" element
+    When I select "Details" in the "#Form_editorAnchorLink_PageID_Holder" tree dropdown
+      And I select "youranchor" in the "#Form_editorAnchorLink_Anchor_Holder" anchor dropdown
+    Then I should see "youranchor" in the "#Form_editorAnchorLink_Anchor_Holder .anchorselectorfield__value-container" element
    When I fill in "my desc" for "Link description"
-      And I press the "Insert" button
+      And I press the "Insert link" button
    Then the "Content" HTML field should contain "<a title="my desc" href="[sitetree_link,id=3]#youranchor">awesome</a>"
    # Required to avoid "unsaved changes" browser dialog
    Then I press the "Save" button
@ -35,16 +33,13 @@ So that I can link to a external website or a page on my site
    Given I fill in the "Content" HTML field with "<p><img src='file1.jpg'></p>"
    When I select the image "file1.jpg" in the "Content" HTML field
      And I press the "Insert link" HTML field button
-      And I click "Anchor on a page" in the ".mce-menu" element
+      And I click "Anchor on a page" in the ".tox-collection__group" element
    Then I should see an "form#Form_editorAnchorLink" element
      And I should not see "Link text"
-      And I should see "About Us" in the "#Form_editorAnchorLink_PageID_Holder .Select-multi-value-wrapper" element
-    When I click "About Us" in the "#Form_editorAnchorLink_PageID_Holder .Select-multi-value-wrapper" element
-      And I click "Details" in the "#Form_editorAnchorLink_PageID_Holder .Select-menu-outer" element
-      And I click "Select or enter anchor" in the "#Form_editorAnchorLink_Anchor_Holder .Select-multi-value-wrapper" element
-      And I click "youranchor" in the "#Form_editorAnchorLink_Anchor_Holder .Select-menu-outer" element
-    Then I should see "youranchor" in the "#Form_editorAnchorLink_Anchor_Holder .Select-value" element
-      And I press the "Insert" button
+      And I should see "About Us" in the "#Form_editorAnchorLink_PageID_Holder .treedropdownfield__value-container" element
+    When I select "Details" in the "#Form_editorAnchorLink_PageID_Holder" tree dropdown
+      And I select "youranchor" in the "#Form_editorAnchorLink_Anchor_Holder" anchor dropdown
+      And I press the "Insert link" button
    Then the "Content" HTML field should contain "<a href="[sitetree_link,id=3]#youranchor"><img src="file1.jpg"></a>"
      # Required to avoid "unsaved changed" browser dialog
      And I press the "Save" button
@ -52,15 +47,13 @@ So that I can link to a external website or a page on my site
  Scenario: I can link to an anchor from a dataobject on the current page
    When I select "awesome" in the "Content" HTML field
      And I press the "Insert link" HTML field button
-      And I click "Anchor on a page" in the ".mce-menu" element
+      And I click "Anchor on a page" in the ".tox-collection__group" element
    Then I should see an "form#Form_editorAnchorLink" element
-      And I should see "About Us" in the "#Form_editorAnchorLink_PageID_Holder .Select-multi-value-wrapper" element
-    When I click "Select or enter anchor" in the "#Form_editorAnchorLink_Anchor_Holder .Select-multi-value-wrapper" element
-    Then I should see "dataobject-anchor" in the "#Form_editorAnchorLink_Anchor_Holder .Select-menu-outer" element
-    When I click "dataobject-anchor" in the "#Form_editorAnchorLink_Anchor_Holder .Select-menu-outer" element
-    Then I should see "dataobject-anchor" in the "#Form_editorAnchorLink_Anchor_Holder .Select-value" element
+      And I should see "About Us" in the "#Form_editorAnchorLink_PageID_Holder .treedropdownfield__value-container" element
+    When I select "dataobject-anchor" in the "#Form_editorAnchorLink_Anchor_Holder" anchor dropdown
+    Then I should see "dataobject-anchor" in the "#Form_editorAnchorLink_Anchor_Holder .anchorselectorfield__value-container" element
    When I fill in "my desc" for "Link description"
-      And I press the "Insert" button
+      And I press the "Insert link" button
    Then the "Content" HTML field should contain "<a title="my desc" href="[sitetree_link,id=2]#dataobject-anchor">awesome</a>"
    # Required to avoid "unsaved changes" browser dialog
    Then I press the "Save" button
@ -69,16 +62,15 @@ So that I can link to a external website or a page on my site
    Given I fill in the "Content" HTML field with "<p>My awesome content</p><p><a id='unsaved-anchor'></a>unsaved content</p>"
    When I select "awesome" in the "Content" HTML field
      And I press the "Insert link" HTML field button
-      And I click "Anchor on a page" in the ".mce-menu" element
+      And I click "Anchor on a page" in the ".tox-collection__group" element
    Then I should see an "form#Form_editorAnchorLink" element
-      And I should see "About Us" in the "#Form_editorAnchorLink_PageID_Holder .Select-multi-value-wrapper" element
-    When I click "Select or enter anchor" in the "#Form_editorAnchorLink_Anchor_Holder .Select-multi-value-wrapper" element
-    Then I should see "unsaved-anchor" in the "#Form_editorAnchorLink_Anchor_Holder .Select-menu-outer" element
-      And I should see "dataobject-anchor" in the "#Form_editorAnchorLink_Anchor_Holder .Select-menu-outer" element
-    When I click "unsaved-anchor" in the "#Form_editorAnchorLink_Anchor_Holder .Select-menu-outer" element
-    Then I should see "unsaved-anchor" in the "#Form_editorAnchorLink_Anchor_Holder .Select-value" element
+      And I should see "About Us" in the "#Form_editorAnchorLink_PageID_Holder .treedropdownfield__value-container" element
+    When I click on the ".anchorselectorfield__dropdown-indicator" element
+      Then I should see "dataobject-anchor" in the ".anchorselectorfield__menu-list" element
+    When I select "unsaved-anchor" in the "#Form_editorAnchorLink_Anchor_Holder" anchor dropdown
+    Then I should see "unsaved-anchor" in the "#Form_editorAnchorLink_Anchor_Holder .anchorselectorfield__value-container" element
    When I fill in "my desc" for "Link description"
-      And I press the "Insert" button
+      And I press the "Insert link" button
    Then the "Content" HTML field should contain "<a title="my desc" href="[sitetree_link,id=2]#unsaved-anchor">awesome</a>"
    # Required to avoid "unsaved changes" browser dialog
    Then I press the "Save" button
--- a/tests/behat/src/FixtureContext.php
+++ b/tests/behat/src/FixtureContext.php
@ -8,6 +8,7 @@ use Behat\Mink\Element\NodeElement;
 use PHPUnit\Framework\Assert;
 use SilverStripe\BehatExtension\Context\BasicContext;
 use SilverStripe\BehatExtension\Context\FixtureContext as BehatFixtureContext;
+use SilverStripe\BehatExtension\Utility\StepHelper;
 use SilverStripe\CMS\Model\RedirectorPage;
 use SilverStripe\CMS\Model\SiteTree;
 use SilverStripe\Core\ClassInfo;
@ -20,6 +21,8 @@ use SilverStripe\Versioned\Versioned;
 */
 class FixtureContext extends BehatFixtureContext
 {
+    use StepHelper;
+
    /**
     * @var BasicContext
     */
@ -118,22 +121,6 @@ class FixtureContext extends BehatFixtureContext
        Assert::assertEquals($value, $radioButton->getAttribute($attribute));
    }

-    /**
-     * Assumes you've just opened the Insert link menu, e.g.
-     * I click on the "div[aria-label='Insert link [Ctrl+K]'] button" element
-     *
-     * @When /^I select "(.+?)" from the TinyMCE menu with javascript$/
-     * @param string $label
-     */
-    public function iSelectFromTheTinyMceMenu($label)
-    {
-        // :visible and :contains are jQuery css selectors
-        $js = <<<JS
-            jQuery(".mce-menu-item:visible span:contains('{$label}')").click();
-JS;
-        $this->getMainContext()->getSession()->executeScript($js);
-    }
-
    /**
     * e.g. --PageOne,--PageTwo,---PageTwoChild,--PageThree
     *
@ -155,4 +142,33 @@ JS;
        $actual = $this->getMainContext()->getSession()->evaluateScript($js);
        Assert::assertEquals($expected, $actual);
    }
+
+    /**
+     * Select a value in the anchor selector field
+     *
+     * @When /^I select "([^"]*)" in the "([^"]*)" anchor dropdown$/
+     */
+    public function iSelectValueInAnchorDropdown($text, $selector)
+    {
+        $page = $this->getMainContext()->getSession()->getPage();
+        /** @var NodeElement $parentElement */
+        $parentElement = null;
+        $this->retryThrowable(function () use (&$parentElement, &$page, $selector) {
+            $parentElement = $page->find('css', $selector);
+            Assert::assertNotNull($parentElement, sprintf('"%s" element not found', $selector));
+            $page = $this->getMainContext()->getSession()->getPage();
+        });
+
+        $this->retryThrowable(function () use ($parentElement, $selector) {
+            $dropdown = $parentElement->find('css', '.anchorselectorfield__dropdown-indicator');
+            Assert::assertNotNull($dropdown, sprintf('Unable to find the dropdown in "%s"', $selector));
+            $dropdown->click();
+        });
+
+        $this->retryThrowable(function () use ($text, $parentElement, $selector) {
+            $element = $parentElement->find('xpath', sprintf('//*[count(*)=0 and .="%s"]', $text));
+            Assert::assertNotNull($element, sprintf('"%s" not found in "%s"', $text, $selector));
+            $element->click();
+        });
+    }
 }
--- a/tests/php/Controllers/CMSBatchActionsTest.php
+++ b/tests/php/Controllers/CMSBatchActionsTest.php
@ -16,7 +16,6 @@ use SilverStripe\Versioned\Versioned;
 */
 class CMSBatchActionsTest extends SapphireTest
 {
-
    protected static $fixture_file = 'CMSBatchActionsTest.yml';

    protected function setUp(): void
@ -142,10 +141,10 @@ class CMSBatchActionsTest extends SapphireTest
        $this->assertEquals($archivedID, $list->first()->ParentID);

        // Run restore
-        $result = json_decode($action->run($list) ?? '', true);
+        $result = json_decode($action->run($list)->getBody(), true);
        $this->assertEquals(
            [
-                $archivedxID => $archivedxID
+                $archivedxID => $archivedxID,
            ],
            $result['success']
        );
@ -162,13 +161,13 @@ class CMSBatchActionsTest extends SapphireTest
        $this->assertEquals(0, $list->last()->ParentID); // archived (parent)

        // Run restore
-        $result = json_decode($action->run($list) ?? '', true);
+        $result = json_decode($action->run($list)->getBody(), true);
        $this->assertEquals(
            [
                // Order of archived is opposite to order items are passed in, as
                // these are sorted by level first
                $archivedID => $archivedID,
-                $archivedyID => $archivedyID
+                $archivedyID => $archivedyID,
            ],
            $result['success']
        );
--- a/tests/php/Controllers/CMSMainTest.php
+++ b/tests/php/Controllers/CMSMainTest.php
@ -2,7 +2,6 @@

 namespace SilverStripe\CMS\Tests\Controllers;

-use Page;
 use Psr\SimpleCache\CacheInterface;
 use SilverStripe\Admin\CMSBatchActionHandler;
 use SilverStripe\CMS\Controllers\CMSMain;
@ -25,7 +24,6 @@ use SilverStripe\Security\Member;
 use SilverStripe\Security\Security;
 use SilverStripe\SiteConfig\SiteConfig;
 use SilverStripe\Versioned\Versioned;
-use SilverStripe\Dev\Deprecation;

 class CMSMainTest extends FunctionalTest
 {
@ -119,40 +117,6 @@ class CMSMainTest extends FunctionalTest
        );
    }

-    /**
-     * @todo Test the results of a publication better
-     */
-    public function testPublish()
-    {
-        if (Deprecation::isEnabled()) {
-            $this->markTestSkipped('Test calls deprecated code');
-        }
-        $page1 = $this->objFromFixture(Page::class, "page1");
-        $page2 = $this->objFromFixture(Page::class, "page2");
-        $this->logInAs('admin');
-
-        $response = $this->get('admin/pages/publishall?confirm=1');
-        $this->assertStringContainsString(
-            'Done: Published 30 pages',
-            $response->getBody()
-        );
-
-        // Some modules (e.g., cmsworkflow) will remove this action
-        $actions = CMSBatchActionHandler::config()->batch_actions;
-        if (isset($actions['publish'])) {
-            $response = $this->get('admin/pages/batchactions/publish?ajax=1&csvIDs=' . implode(',', [$page1->ID, $page2->ID]));
-            $responseData = json_decode($response->getBody() ?? '', true);
-            $this->assertArrayHasKey($page1->ID, $responseData['modified']);
-            $this->assertArrayHasKey($page2->ID, $responseData['modified']);
-        }
-
-        // Get the latest version of the redirector page
-        $pageID = $this->idFromFixture(RedirectorPage::class, 'page5');
-        $latestID = DB::prepared_query('select max("Version") from "RedirectorPage_Versions" where "RecordID" = ?', [$pageID])->value();
-        $dsCount = DB::prepared_query('select count("Version") from "RedirectorPage_Versions" where "RecordID" = ? and "Version"= ?', [$pageID, $latestID])->value();
-        $this->assertEquals(1, $dsCount, "Published page has no duplicate version records: it has " . $dsCount . " for version " . $latestID);
-    }
-
    /**
     * Test that getCMSFields works on each page type.
     * Mostly, this is just checking that the method doesn't return an error
@ -185,8 +149,8 @@ class CMSMainTest extends FunctionalTest
        $this->logInWithPermission('ADMIN');

        Config::modify()->set(SiteTree::class, 'enforce_strict_hierarchy', true);
-        $parentPage = $this->objFromFixture(Page::class, 'page3');
-        $childPage = $this->objFromFixture(Page::class, 'page1');
+        $parentPage = $this->objFromFixture(SiteTree::class, 'page3');
+        $childPage = $this->objFromFixture(SiteTree::class, 'page1');

        $parentPage->doUnpublish();
        $childPage->doUnpublish();
@ -208,7 +172,7 @@ class CMSMainTest extends FunctionalTest
        $this->logInWithPermission('ADMIN');

        // Set up a page that is delete from live
-        $page = $this->objFromFixture(Page::class, 'page1');
+        $page = $this->objFromFixture(SiteTree::class, 'page1');
        $pageID = $page->ID;
        $page->publishRecursive();
        $page->delete();
@ -216,7 +180,7 @@ class CMSMainTest extends FunctionalTest
        $response = $this->get('admin/pages/edit/show/' . $pageID);

        $livePage = Versioned::get_one_by_stage(SiteTree::class, Versioned::LIVE, [
-                '"SiteTree"."ID"' => $pageID
+                '"SiteTree"."ID"' => $pageID,
        ]);
        $this->assertInstanceOf(SiteTree::class, $livePage);
        $this->assertTrue($livePage->canDelete());
@ -233,7 +197,7 @@ class CMSMainTest extends FunctionalTest
        $this->logInWithPermission('ADMIN');

        // Set up a page that is delete from live
-        $page1 = $this->objFromFixture(Page::class, 'page1');
+        $page1 = $this->objFromFixture(SiteTree::class, 'page1');
        $page1ID = $page1->ID;
        $page1->publishRecursive();
        $page1->delete();
@ -246,18 +210,18 @@ class CMSMainTest extends FunctionalTest
        $this->assertNull($cmsMain->getRecord('asdf'));

        // Pages that are on draft and aren't on draft should both work
-        $this->assertInstanceOf('Page', $cmsMain->getRecord($page1ID));
-        $this->assertInstanceOf('Page', $cmsMain->getRecord($this->idFromFixture('Page', 'page2')));
+        $this->assertInstanceOf(SiteTree::class, $cmsMain->getRecord($page1ID));
+        $this->assertInstanceOf(SiteTree::class, $cmsMain->getRecord($this->idFromFixture(SiteTree::class, 'page2')));

        // This functionality isn't actually used any more.
        $newPage = $cmsMain->getRecord('new-Page-5');
-        $this->assertInstanceOf('Page', $newPage);
+        $this->assertInstanceOf(SiteTree::class, $newPage);
        $this->assertEquals('5', $newPage->ParentID);
    }

    public function testDeletedPagesSiteTreeFilter()
    {
-        $id = $this->idFromFixture('Page', 'page3');
+        $id = $this->idFromFixture(SiteTree::class, 'page3');
        $this->logInWithPermission('ADMIN');
        $result = $this->get('admin/pages/getsubtree?filter=CMSSiteTreeFilter_DeletedPages&ajax=1&ID=' . $id);
        $this->assertEquals(200, $result->getStatusCode());
@ -278,7 +242,7 @@ class CMSMainTest extends FunctionalTest
            'admin/pages/add/AddForm',
            [
                'ParentID' => '0',
-                'PageType' => 'Page',
+                'PageType' => RedirectorPage::class,
                'Locale' => 'en_US',
                'action_doAdd' => 1,
                'ajax' => 1,
@ -298,7 +262,7 @@ class CMSMainTest extends FunctionalTest
            'admin/pages/add/AddForm',
            [
                'ParentID' => '0',
-                'PageType' => 'Page',
+                'PageType' => RedirectorPage::class,
                'Locale' => 'en_US',
                'action_doAdd' => 1,
                'ajax' => 1,
@ -332,7 +296,7 @@ class CMSMainTest extends FunctionalTest
                'PageType' => CMSMainTest_ClassA::class,
                'Locale' => 'en_US',
                'action_doAdd' => 1,
-                'ajax' => 1
+                'ajax' => 1,
            ],
            [
                'X-Pjax' => 'CurrentForm,Breadcrumbs',
@ -352,7 +316,7 @@ class CMSMainTest extends FunctionalTest
                'PageType' => CMSMainTest_ClassB::class,
                'Locale' => 'en_US',
                'action_doAdd' => 1,
-                'ajax' => 1
+                'ajax' => 1,
            ],
            [
                'X-Pjax' => 'CurrentForm,Breadcrumbs',
@ -375,10 +339,10 @@ class CMSMainTest extends FunctionalTest
            'admin/pages/add/AddForm',
            [
                'ParentID' => $newPageId,
-                'PageType' => 'Page',
+                'PageType' => RedirectorPage::class,
                'Locale' => 'en_US',
                'action_doAdd' => 1,
-                'ajax' => 1
+                'ajax' => 1,
            ],
            [
                'X-Pjax' => 'CurrentForm,Breadcrumbs',
@ -393,8 +357,8 @@ class CMSMainTest extends FunctionalTest

    public function testBreadcrumbs()
    {
-        $page3 = $this->objFromFixture(Page::class, 'page3');
-        $page31 = $this->objFromFixture(Page::class, 'page31');
+        $page3 = $this->objFromFixture(SiteTree::class, 'page3');
+        $page31 = $this->objFromFixture(SiteTree::class, 'page31');
        $this->logInAs('admin');

        $response = $this->get('admin/pages/edit/show/' . $page31->ID);
@ -420,7 +384,7 @@ class CMSMainTest extends FunctionalTest

        $this->assertEquals($page->Title, 'New Page');
        $this->assertNotEquals($page->Sort, 0);
-        $this->assertInstanceOf('Page', $page);
+        $this->assertInstanceOf(SiteTree::class, $page);

        // Test failure
        try {
@ -449,10 +413,10 @@ class CMSMainTest extends FunctionalTest
        );

        // Change state of tree
-        $page1 = $this->objFromFixture(Page::class, 'page1');
-        $page3 = $this->objFromFixture(Page::class, 'page3');
-        $page11 = $this->objFromFixture(Page::class, 'page11');
-        $page12 = $this->objFromFixture(Page::class, 'page12');
+        $page1 = $this->objFromFixture(SiteTree::class, 'page1');
+        $page3 = $this->objFromFixture(SiteTree::class, 'page3');
+        $page11 = $this->objFromFixture(SiteTree::class, 'page11');
+        $page12 = $this->objFromFixture(SiteTree::class, 'page12');
        // Deleted
        $page1->doUnpublish();
        $page1->delete();
@ -472,7 +436,7 @@ class CMSMainTest extends FunctionalTest

        // Test deleted page filter
        $params = [
-                'FilterClass' => 'SilverStripe\\CMS\\Controllers\\CMSSiteTreeFilter_StatusDeletedPages'
+                'FilterClass' => 'SilverStripe\\CMS\\Controllers\\CMSSiteTreeFilter_StatusDeletedPages',
        ];
        $pages = $controller->getList($params);
        $this->assertEquals(1, $pages->count());
@ -483,7 +447,7 @@ class CMSMainTest extends FunctionalTest

        // Test live, but not on draft filter
        $params = [
-            'FilterClass' => 'SilverStripe\\CMS\\Controllers\\CMSSiteTreeFilter_StatusRemovedFromDraftPages'
+            'FilterClass' => 'SilverStripe\\CMS\\Controllers\\CMSSiteTreeFilter_StatusRemovedFromDraftPages',
        ];
        $pages = $controller->getList($params);
        $this->assertEquals(1, $pages->count());
@ -494,7 +458,7 @@ class CMSMainTest extends FunctionalTest

        // Test live pages filter
        $params = [
-            'FilterClass' => 'SilverStripe\\CMS\\Controllers\\CMSSiteTreeFilter_PublishedPages'
+            'FilterClass' => 'SilverStripe\\CMS\\Controllers\\CMSSiteTreeFilter_PublishedPages',
        ];
        $pages = $controller->getList($params);
        $this->assertEquals(2, $pages->count());
@ -529,7 +493,7 @@ class CMSMainTest extends FunctionalTest
        $this->loginWithPermission('ADMIN');

        // Get a associated with a fixture page.
-        $page = $this->objFromFixture(Page::class, 'page1');
+        $page = $this->objFromFixture(SiteTree::class, 'page1');
        $controller = CMSMain::create();
        $controller->setRequest(Controller::curr()->getRequest());
        $form = $controller->getEditForm($page->ID);
@ -557,7 +521,7 @@ class CMSMainTest extends FunctionalTest
        $form->loadDataFrom(['ClassName' => CMSMainTest_ClassB::class]);
        $result = $cms->save([
            'ID' => $page->ID,
-            'ClassName' => CMSMainTest_ClassB::class
+            'ClassName' => CMSMainTest_ClassB::class,
        ], $form);
        $this->assertEquals(200, $result->getStatusCode());

--- a/tests/php/Controllers/CMSMainTest.yml
+++ b/tests/php/Controllers/CMSMainTest.yml
@ -1,4 +1,4 @@
-Page:
+SilverStripe\CMS\Model\SiteTree:
  page1:
    Title: Page 1
    Sort: 1
@ -10,11 +10,11 @@ Page:
    Sort: 3
  page31:
    Title: Page 3.1
-    Parent: =>Page.page3
+    Parent: =>SilverStripe\CMS\Model\SiteTree.page3
    Sort: 1
  page32:
    Title: Page 3.2
-    Parent: =>Page.page3
+    Parent: =>SilverStripe\CMS\Model\SiteTree.page3
    Sort: 2
  page4:
    Title: Page 4
--- a/tests/php/Controllers/CMSMainTest_ClassA.php
+++ b/tests/php/Controllers/CMSMainTest_ClassA.php
@ -2,11 +2,11 @@

 namespace SilverStripe\CMS\Tests\Controllers;

+use SilverStripe\CMS\Model\SiteTree;
 use SilverStripe\Dev\TestOnly;
 use SilverStripe\ORM\ValidationException;
-use Page;

-class CMSMainTest_ClassA extends Page implements TestOnly
+class CMSMainTest_ClassA extends SiteTree implements TestOnly
 {
    private static $table_name = 'CMSMainTest_ClassA';

--- a/tests/php/Controllers/CMSMainTest_ClassB.php
+++ b/tests/php/Controllers/CMSMainTest_ClassB.php
@ -2,11 +2,11 @@

 namespace SilverStripe\CMS\Tests\Controllers;

+use SilverStripe\CMS\Model\SiteTree;
 use SilverStripe\Dev\TestOnly;
 use SilverStripe\ORM\ValidationException;
-use Page;

-class CMSMainTest_ClassB extends Page implements TestOnly
+class CMSMainTest_ClassB extends SiteTree implements TestOnly
 {
    private static $table_name = 'CMSMainTest_ClassB';

--- a/tests/php/Controllers/CMSMainTest_HiddenClass.php
+++ b/tests/php/Controllers/CMSMainTest_HiddenClass.php
@ -2,11 +2,10 @@

 namespace SilverStripe\CMS\Tests\Controllers;

+use SilverStripe\CMS\Model\SiteTree;
 use SilverStripe\Dev\TestOnly;
 use SilverStripe\ORM\HiddenClass;
-use Page;

-class CMSMainTest_HiddenClass extends Page implements TestOnly, HiddenClass
+class CMSMainTest_HiddenClass extends SiteTree implements TestOnly, HiddenClass
 {
-
 }
--- a/tests/php/Controllers/CMSMainTest_NotRoot.php
+++ b/tests/php/Controllers/CMSMainTest_NotRoot.php
@ -2,10 +2,10 @@

 namespace SilverStripe\CMS\Tests\Controllers;

+use SilverStripe\CMS\Model\SiteTree;
 use SilverStripe\Dev\TestOnly;
-use Page;

-class CMSMainTest_NotRoot extends Page implements TestOnly
+class CMSMainTest_NotRoot extends SiteTree implements TestOnly
 {
    private static $table_name = 'CMSMainTest_NotRoot';

--- a/tests/php/Controllers/CMSPageHistoryControllerTest.php
+++ b/tests/php/Controllers/CMSPageHistoryControllerTest.php
@ -1,219 +0,0 @@
-<?php
-
-namespace SilverStripe\CMS\Tests\Controllers;
-
-use Page;
-use SilverStripe\CMS\Controllers\CMSPageHistoryController;
-use SilverStripe\CMS\Tests\Controllers\CMSPageHistoryControllerTest\HistoryController;
-use SilverStripe\Control\Controller;
-use SilverStripe\Core\Injector\Injector;
-use SilverStripe\Dev\FunctionalTest;
-use SilverStripe\Forms\FieldGroup;
-use SilverStripe\Forms\FieldList;
-use SilverStripe\Forms\HiddenField;
-use SilverStripe\Forms\HTMLReadonlyField;
-use SilverStripe\Dev\Deprecation;
-use SilverStripe\Forms\TextField;
-
-class CMSPageHistoryControllerTest extends FunctionalTest
-{
-    protected static $fixture_file = 'CMSPageHistoryControllerTest.yml';
-
-    protected $versionUnpublishedCheck;
-    protected $versionPublishCheck;
-    protected $versionUnpublishedCheck2;
-    protected $versionPublishCheck2;
-    protected $page;
-
-    protected static $extra_controllers = [
-        CMSPageHistoryControllerTest\HistoryController::class,
-    ];
-
-    protected function setUp(): void
-    {
-        parent::setUp();
-
-        Deprecation::withNoReplacement(function () {
-            Injector::inst()->registerService(
-                new CMSPageHistoryController(),
-                CMSPageHistoryController::class
-            );
-        });
-
-        $this->loginWithPermission('ADMIN');
-
-        // creates a series of published, unpublished versions of a page
-        $this->page = new Page();
-        $this->page->URLSegment = "test";
-        $this->page->Content = "new content";
-        $this->page->write();
-        $this->versionUnpublishedCheck = $this->page->Version; // v1
-
-        $this->page->Content = "some further content";
-        $this->page->publishSingle();
-        $this->versionPublishCheck = $this->page->Version; // v2
-
-        $this->page->Content = "No, more changes please";
-        $this->page->Title = "Changing titles too";
-        $this->page->write();
-        $this->versionUnpublishedCheck2 = $this->page->Version; // v3
-
-        $this->page->Title = "Final Change";
-        $this->page->publishSingle();
-        $this->versionPublishCheck2 = $this->page->Version; // v4
-    }
-
-    public function testGetEditForm()
-    {
-        if (Deprecation::isEnabled()) {
-            $this->markTestSkipped('Test calls deprecated code');
-        }
-        $controller = new CMSPageHistoryController();
-        $controller->setRequest(Controller::curr()->getRequest());
-
-        // should get the latest version which we cannot rollback to
-        $form = $controller->getEditForm($this->page->ID);
-
-        $this->assertTrue($form->Actions()->dataFieldByName('action_doRollback')->isReadonly());
-
-        $this->assertEquals($this->page->ID, $form->Fields()->dataFieldByName('ID')->Value());
-        $this->assertEquals($this->versionPublishCheck2, $form->Fields()->dataFieldByName('Version')->Value());
-
-        $this->assertStringContainsString(
-            'Currently viewing the latest version',
-            $form->Fields()->fieldByName('Root.Main.CurrentlyViewingMessage')->getContent()
-        );
-
-        // edit form with a given version
-        $form = $controller->getEditForm($this->page->ID, null, $this->versionPublishCheck);
-        $this->assertFalse($form->Actions()->dataFieldByName('action_doRollback')->isReadonly());
-
-        $this->assertEquals($this->page->ID, $form->Fields()->dataFieldByName('ID')->Value());
-        $this->assertEquals($this->versionPublishCheck, $form->Fields()->dataFieldByName('Version')->Value());
-        $this->assertStringContainsString(
-            sprintf("Currently viewing version %s.", $this->versionPublishCheck),
-            $form->Fields()->fieldByName('Root.Main.CurrentlyViewingMessage')->getContent()
-        );
-
-        // check that compare mode updates the message
-        $form = $controller->getEditForm($this->page->ID, null, $this->versionPublishCheck, $this->versionPublishCheck2);
-        $this->assertStringContainsString(
-            sprintf("Comparing versions %s", $this->versionPublishCheck),
-            $form->Fields()->fieldByName('Root.Main.CurrentlyViewingMessage')->getContent()
-        );
-
-        $this->assertStringContainsString(
-            sprintf("and %s", $this->versionPublishCheck2),
-            $form->Fields()->fieldByName('Root.Main.CurrentlyViewingMessage')->getContent()
-        );
-    }
-
-    /**
-     * @todo should be less tied to cms theme.
-     * @todo check highlighting for comparing pages.
-     */
-    public function testVersionsForm()
-    {
-        if (Deprecation::isEnabled()) {
-            $this->markTestSkipped('Test calls deprecated code');
-        }
-        $this->get('admin/pages/legacyhistory/show/' . $this->page->ID);
-
-        $form = $this->cssParser()->getBySelector('#Form_VersionsForm');
-
-        $this->assertEquals(1, count($form ?? []));
-
-        // check the page ID is present
-        $hidden = $form[0]->xpath("fieldset/input[@type='hidden']");
-
-        $this->assertThat($hidden, $this->logicalNot($this->isNull()), 'Hidden ID field exists');
-        $this->assertEquals($this->page->ID, (int) $hidden[0]->attributes()->value);
-
-        // ensure that all the versions are present in the table and displayed
-        $rows = $form[0]->xpath("fieldset/table/tbody/tr");
-        $this->assertEquals(4, count($rows ?? []));
-    }
-
-    public function testVersionsFormTableContainsInformation()
-    {
-        if (Deprecation::isEnabled()) {
-            $this->markTestSkipped('Test calls deprecated code');
-        }
-        $this->get('admin/pages/legacyhistory/show/' . $this->page->ID);
-        $form = $this->cssParser()->getBySelector('#Form_VersionsForm');
-        $rows = $form[0]->xpath("fieldset/table/tbody/tr");
-
-        $expected = [
-            ['version' => $this->versionPublishCheck2, 'status' => 'published'],
-            ['version' => $this->versionUnpublishedCheck2, 'status' => 'internal'],
-            ['version' => $this->versionPublishCheck, 'status' => 'published'],
-            ['version' => $this->versionUnpublishedCheck, 'status' => 'internal']
-        ];
-
-        // goes the reverse order that we created in setUp()
-        $i = 0;
-        foreach ($rows as $tr) {
-            // data-link must be present for the javascript to load new
-            $this->assertStringContainsString($expected[$i]['status'], (string) $tr->attributes()->class);
-            $i++;
-        }
-
-        // test highlighting
-        $this->assertStringContainsString('active', (string) $rows[0]->attributes()->class);
-        $this->assertThat((string) $rows[1]->attributes()->class, $this->logicalNot($this->stringContains('active')));
-    }
-
-    public function testVersionsFormSelectsUnpublishedCheckbox()
-    {
-        if (Deprecation::isEnabled()) {
-            $this->markTestSkipped('Test calls deprecated code');
-        }
-        $this->get('admin/pages/legacyhistory/show/' . $this->page->ID);
-        $checkbox = $this->cssParser()->getBySelector('#Form_VersionsForm_ShowUnpublished');
-
-        $this->assertThat($checkbox[0], $this->logicalNot($this->isNull()));
-        $checked = $checkbox[0]->attributes()->checked ?: '';
-
-        $this->assertThat($checked, $this->logicalNot($this->stringContains('checked')));
-
-        // viewing an unpublished
-        $this->get('admin/pages/legacyhistory/show/' . $this->page->ID . '/' . $this->versionUnpublishedCheck);
-        $checkbox = $this->cssParser()->getBySelector('#Form_VersionsForm_ShowUnpublished');
-
-        $this->assertThat($checkbox[0], $this->logicalNot($this->isNull()));
-        $this->assertEquals('checked', (string) $checkbox[0]->attributes()->checked);
-    }
-
-    public function testTransformReadonly()
-    {
-        if (Deprecation::isEnabled()) {
-            $this->markTestSkipped('Test calls deprecated code');
-        }
-        /** @var CMSPageHistoryController $history */
-        $history = new CMSPageHistoryController();
-        $history->setRequest(Controller::curr()->getRequest());
-
-        $fieldList = FieldList::create([
-            FieldGroup::create('group', [
-                TextField::create('childField', 'child field'),
-            ]),
-            TextField::create('field', 'field', 'My <del>value</del><ins>change</ins>'),
-            HiddenField::create('hiddenField', 'hidden field'),
-        ]);
-
-        $newList = $history->transformReadonly($fieldList);
-
-        $field = $newList->dataFieldByName('field');
-        $this->assertTrue($field instanceof HTMLReadonlyField);
-        $this->assertStringContainsString('<ins>', $field->forTemplate());
-
-        $groupField = $newList->fieldByName('group');
-        $this->assertTrue($groupField instanceof FieldGroup);
-
-        $childField = $newList->dataFieldByName('childField');
-        $this->assertTrue($childField instanceof HTMLReadonlyField);
-
-        $hiddenField = $newList->dataFieldByName('hiddenField');
-        $this->assertTrue($hiddenField instanceof HiddenField);
-    }
-}
--- a/tests/php/Controllers/CMSPageHistoryControllerTest.yml
+++ b/tests/php/Controllers/CMSPageHistoryControllerTest.yml
@ -1,10 +0,0 @@
-Page:
-  page1:
-    Title: Page 1
-    Sort: 1
-  page2:
-    Title: Page 2
-    Sort: 2
-  page3:
-    Title: Page 3
-    Sort: 3
--- a/tests/php/Controllers/CMSPageHistoryControllerTest/HistoryController.php
+++ b/tests/php/Controllers/CMSPageHistoryControllerTest/HistoryController.php
@ -1,15 +0,0 @@
-<?php
-
-namespace SilverStripe\CMS\Tests\Controllers\CMSPageHistoryControllerTest;
-
-use SilverStripe\CMS\Controllers\CMSPageHistoryController;
-use SilverStripe\Dev\TestOnly;
-
-/**
- * Used to circumvent potential URL conflicts with the silverstripe/versioned-admin history viewer controller
- * when running unit tests on the legacy CMSPageHistoryController.
- */
-class HistoryController extends CMSPageHistoryController implements TestOnly
-{
-    private static $url_segment = 'pages/legacyhistory';
-}
--- a/tests/php/Controllers/CMSSiteTreeFilterTest.php
+++ b/tests/php/Controllers/CMSSiteTreeFilterTest.php
@ -2,7 +2,6 @@

 namespace SilverStripe\CMS\Tests\Controllers;

-use Page;
 use SilverStripe\CMS\Model\SiteTree;
 use SilverStripe\Versioned\Versioned;
 use SilverStripe\CMS\Controllers\CMSSiteTreeFilter_Search;
@ -15,13 +14,12 @@ use SilverStripe\Dev\SapphireTest;

 class CMSSiteTreeFilterTest extends SapphireTest
 {
-
    protected static $fixture_file = 'CMSSiteTreeFilterTest.yml';

    public function testSearchFilterEmpty()
    {
-        $page1 = $this->objFromFixture('Page', 'page1');
-        $page2 = $this->objFromFixture('Page', 'page2');
+        $page1 = $this->objFromFixture(SiteTree::class, 'page1');
+        $page2 = $this->objFromFixture(SiteTree::class, 'page2');

        $f = new CMSSiteTreeFilter_Search();
        $results = $f->pagesIncluded();
@ -32,8 +30,8 @@ class CMSSiteTreeFilterTest extends SapphireTest

    public function testSearchFilterByTitle()
    {
-        $page1 = $this->objFromFixture('Page', 'page1');
-        $page2 = $this->objFromFixture('Page', 'page2');
+        $page1 = $this->objFromFixture(SiteTree::class, 'page1');
+        $page2 = $this->objFromFixture(SiteTree::class, 'page2');

        $f = new CMSSiteTreeFilter_Search(['Title' => 'Page 1']);
        $results = $f->pagesIncluded();
@ -49,7 +47,7 @@ class CMSSiteTreeFilterTest extends SapphireTest

    public function testUrlSegmentFilter()
    {
-        $page = $this->objFromFixture(Page::class, 'page8');
+        $page = $this->objFromFixture(SiteTree::class, 'page8');

        $filter = CMSSiteTreeFilter_Search::create(['Term' => 'lake-wanaka+adventure']);
        $this->assertTrue($filter->isPageIncluded($page));
@ -60,8 +58,8 @@ class CMSSiteTreeFilterTest extends SapphireTest

    public function testIncludesParentsForNestedMatches()
    {
-        $parent = $this->objFromFixture('Page', 'page3');
-        $child = $this->objFromFixture('Page', 'page3b');
+        $parent = $this->objFromFixture(SiteTree::class, 'page3');
+        $child = $this->objFromFixture(SiteTree::class, 'page3b');

        $f = new CMSSiteTreeFilter_Search(['Title' => 'Page 3b']);
        $results = $f->pagesIncluded();
@ -78,11 +76,11 @@ class CMSSiteTreeFilterTest extends SapphireTest
    public function testChangedPagesFilter()
    {
        /** @var Page $unchangedPage */
-        $unchangedPage = $this->objFromFixture('Page', 'page1');
+        $unchangedPage = $this->objFromFixture(SiteTree::class, 'page1');
        $unchangedPage->publishRecursive();

        /** @var Page $changedPage */
-        $changedPage = $this->objFromFixture('Page', 'page2');
+        $changedPage = $this->objFromFixture(SiteTree::class, 'page2');
        $changedPage->Title = 'Original';
        $changedPage->copyVersionToStage(Versioned::DRAFT, Versioned::LIVE);
        $changedPage->Title = 'Changed';
@ -121,7 +119,7 @@ class CMSSiteTreeFilterTest extends SapphireTest

    public function testDeletedPagesFilter()
    {
-        $deletedPage = $this->objFromFixture('Page', 'page2');
+        $deletedPage = $this->objFromFixture(SiteTree::class, 'page2');
        $deletedPage->copyVersionToStage(Versioned::DRAFT, Versioned::LIVE);
        $deletedPageID = $deletedPage->ID;
        $deletedPage->delete();
@ -141,7 +139,7 @@ class CMSSiteTreeFilterTest extends SapphireTest

    public function testStatusDraftPagesFilter()
    {
-        $draftPage = $this->objFromFixture('Page', 'page4');
+        $draftPage = $this->objFromFixture(SiteTree::class, 'page4');
        $draftPage = Versioned::get_one_by_stage(
            SiteTree::class,
            'Stage',
@ -164,20 +162,23 @@ class CMSSiteTreeFilterTest extends SapphireTest

    public function testDateFromToLastSameDate()
    {
-        $draftPage = $this->objFromFixture('Page', 'page4');
+        $draftPage = $this->objFromFixture(SiteTree::class, 'page4');
        // Grab the date
        $date = substr($draftPage->LastEdited ?? '', 0, 10);
        // Filter with that date
        $filter = new CMSSiteTreeFilter_Search([
            'LastEditedFrom' => $date,
-            'LastEditedTo' => $date
+            'LastEditedTo' => $date,
        ]);
-        $this->assertTrue($filter->isPageIncluded($draftPage), 'Using the same date for from and to should show find that page');
+        $this->assertTrue(
+            $filter->isPageIncluded($draftPage),
+            'Using the same date for from and to should show find that page'
+        );
    }

    public function testStatusRemovedFromDraftFilter()
    {
-        $removedDraftPage = $this->objFromFixture('Page', 'page6');
+        $removedDraftPage = $this->objFromFixture(SiteTree::class, 'page6');
        $removedDraftPage->publishRecursive();
        $removedDraftPage->deleteFromStage('Stage');
        $removedDraftPage = Versioned::get_one_by_stage(
@ -202,7 +203,7 @@ class CMSSiteTreeFilterTest extends SapphireTest

    public function testStatusDeletedFilter()
    {
-        $deletedPage = $this->objFromFixture('Page', 'page7');
+        $deletedPage = $this->objFromFixture(SiteTree::class, 'page7');
        $deletedPage->copyVersionToStage(Versioned::DRAFT, Versioned::LIVE);
        $deletedPageID = $deletedPage->ID;

--- a/tests/php/Controllers/CMSSiteTreeFilterTest.yml
+++ b/tests/php/Controllers/CMSSiteTreeFilterTest.yml
@ -1,4 +1,4 @@
-Page:
+SilverStripe\CMS\Model\SiteTree:
  page1:
    Title: Page 1
  page2:
@ -15,19 +15,19 @@ Page:
  page7:
    Title: Page 7
  page7a:
-    Parent: =>Page.page7
+    Parent: =>SilverStripe\CMS\Model\SiteTree.page7
    Title: Page 7a
  page2a:
-    Parent: =>Page.page2
+    Parent: =>SilverStripe\CMS\Model\SiteTree.page2
    Title: Page 2a
  page2b:
-    Parent: =>Page.page2
+    Parent: =>SilverStripe\CMS\Model\SiteTree.page2
    Title: Page 2b
  page3a:
-    Parent: =>Page.page3
+    Parent: =>SilverStripe\CMS\Model\SiteTree.page3
    Title: Page 3a
  page3b:
-    Parent: =>Page.page3
+    Parent: =>SilverStripe\CMS\Model\SiteTree.page3
    Title: Page 3b
  page8:
    Title: EncodedUrlSegment
--- a/tests/php/Controllers/CMSTreeTest.php
+++ b/tests/php/Controllers/CMSTreeTest.php
@ -32,7 +32,7 @@ class CMSTreeTest extends FunctionalTest
        $data = [
            'SiblingIDs' => $siblingIDs,
            'ID' => $page2->ID,
-            'ParentID' => 0
+            'ParentID' => 0,
        ];

        $response = $this->post('admin/pages/edit/savetreenode', $data);
@ -62,12 +62,12 @@ class CMSTreeTest extends FunctionalTest
        $siblingIDs = [
            $page31->ID,
            $page2->ID,
-            $page32->ID
+            $page32->ID,
        ];
        $data = [
            'SiblingIDs' => $siblingIDs,
            'ID' => $page2->ID,
-            'ParentID' => $page3->ID
+            'ParentID' => $page3->ID,
        ];
        $response = $this->post('admin/pages/edit/savetreenode', $data);
        $this->assertEquals(200, $response->getStatusCode());
@ -95,7 +95,7 @@ class CMSTreeTest extends FunctionalTest
        $this->logInWithPermission('ADMIN');

        // Check page
-        $result = $this->get('admin/pages/edit/updatetreenodes?ids='.$page1->ID);
+        $result = $this->get('admin/pages/edit/updatetreenodes?ids=' . $page1->ID);
        $this->assertEquals(200, $result->getStatusCode());
        $this->assertEquals('application/json', $result->getHeader('Content-Type'));
        $data = json_decode($result->getBody() ?? '', true);
@ -105,7 +105,7 @@ class CMSTreeTest extends FunctionalTest
        $this->assertEmpty($pageData['PrevID']);

        // check subpage
-        $result = $this->get('admin/pages/edit/updatetreenodes?ids='.$page31->ID);
+        $result = $this->get('admin/pages/edit/updatetreenodes?ids=' . $page31->ID);
        $this->assertEquals(200, $result->getStatusCode());
        $this->assertEquals('application/json', $result->getHeader('Content-Type'));
        $data = json_decode($result->getBody() ?? '', true);
@ -115,7 +115,7 @@ class CMSTreeTest extends FunctionalTest
        $this->assertEmpty($pageData['PrevID']);

        // Multiple pages
-        $result = $this->get('admin/pages/edit/updatetreenodes?ids='.$page1->ID.','.$page2->ID);
+        $result = $this->get('admin/pages/edit/updatetreenodes?ids=' . $page1->ID . ',' . $page2->ID);
        $this->assertEquals(200, $result->getStatusCode());
        $this->assertEquals('application/json', $result->getHeader('Content-Type'));
        $data = json_decode($result->getBody() ?? '', true);
--- a/tests/php/Controllers/ContentControllerPermissionsTest.php
+++ b/tests/php/Controllers/ContentControllerPermissionsTest.php
@ -6,7 +6,7 @@ use SilverStripe\Versioned\Versioned;
 use SilverStripe\Control\HTTPResponse_Exception;
 use SilverStripe\Core\Config\Config;
 use SilverStripe\Dev\FunctionalTest;
-use Page;
+use SilverStripe\CMS\Model\SiteTree;

 class ContentControllerPermissionsTest extends FunctionalTest
 {
@ -17,7 +17,7 @@ class ContentControllerPermissionsTest extends FunctionalTest
    public function testCanViewStage()
    {
        // Create a new page
-        $page = new Page();
+        $page = new SiteTree();
        $page->URLSegment = 'testpage';
        $page->write();
        $page->copyVersionToStage(Versioned::DRAFT, Versioned::LIVE);
@ -38,7 +38,11 @@ class ContentControllerPermissionsTest extends FunctionalTest
            $response = $responseException->getResponse();
        }
        // should redirect to login
-        $this->assertEquals($response->getStatusCode(), 302, 'Redirects to login page when not logged in for draft stage');
+        $this->assertEquals(
+            $response->getStatusCode(),
+            302,
+            'Redirects to login page when not logged in for draft stage'
+        );
        $this->assertStringContainsString(
            Config::inst()->get('SilverStripe\\Security\\Security', 'login_url'),
            $response->getHeader('Location')
@ -47,6 +51,10 @@ class ContentControllerPermissionsTest extends FunctionalTest
        $this->logInWithPermission('CMS_ACCESS_CMSMain');

        $response = $this->get('/testpage/?stage=Stage');
-        $this->assertEquals($response->getStatusCode(), 200, 'Doesnt redirect to login, but shows page for authenticated user');
+        $this->assertEquals(
+            $response->getStatusCode(),
+            200,
+            'Doesnt redirect to login, but shows page for authenticated user'
+        );
    }
 }
--- a/tests/php/Controllers/ContentControllerSearchExtensionTest.php
+++ b/tests/php/Controllers/ContentControllerSearchExtensionTest.php
@ -4,23 +4,23 @@ namespace SilverStripe\CMS\Tests\Controllers;

 use SilverStripe\Assets\File;
 use SilverStripe\CMS\Controllers\ContentController;
+use SilverStripe\CMS\Model\SiteTree;
 use SilverStripe\CMS\Search\ContentControllerSearchExtension;
 use SilverStripe\Dev\SapphireTest;
 use SilverStripe\ORM\Search\FulltextSearchable;
 use SilverStripe\Versioned\Versioned;
-use Page;

 class ContentControllerSearchExtensionTest extends SapphireTest
 {
    protected static $required_extensions = [
        ContentController::class => [
            ContentControllerSearchExtension::class,
-        ]
+        ],
    ];

    public function testCustomSearchFormClassesToTest()
    {
-        $page = new Page();
+        $page = new SiteTree();
        $page->URLSegment = 'whatever';
        $page->Content = 'oh really?';
        $page->write();
--- a/tests/php/Controllers/ContentControllerTest.php
+++ b/tests/php/Controllers/ContentControllerTest.php
@ -10,7 +10,6 @@ use SilverStripe\Control\HTTPResponse_Exception;
 use SilverStripe\Core\Config\Config;
 use SilverStripe\Dev\FunctionalTest;
 use SilverStripe\Versioned\Versioned;
-use Page;

 class ContentControllerTest extends FunctionalTest
 {
@ -31,8 +30,8 @@ class ContentControllerTest extends FunctionalTest
        Config::modify()->set(SiteTree::class, 'nested_urls', true);

        // Ensure all pages are published
-        /** @var Page $page */
-        foreach (Page::get() as $page) {
+        /** @var SiteTree $page */
+        foreach (SiteTree::get() as $page) {
            $page->publishSingle();
        }
    }
@ -95,8 +94,7 @@ class ContentControllerTest extends FunctionalTest

    public function testDeepNestedURLs()
    {
-
-        $page = new Page();
+        $page = new SiteTree();
        $page->URLSegment = 'base-page';
        $page->write();
        $page->publishSingle();
@ -174,7 +172,7 @@ class ContentControllerTest extends FunctionalTest
            $response = $this->get($page->RelativeLink());
            $this->assertEquals("ContentControllerTestPageWithoutController", trim($response->getBody() ?? ''));

-            // // This should fall over to user Page.ss
+            // This should fall over to user Page.ss
            $page = new ContentControllerTestPage();
            $page->URLSegment = "test";
            $page->write();
--- a/tests/php/Controllers/ContentControllerTestPage.php
+++ b/tests/php/Controllers/ContentControllerTestPage.php
@ -2,10 +2,10 @@

 namespace SilverStripe\CMS\Tests\Controllers;

+use SilverStripe\CMS\Model\SiteTree;
 use SilverStripe\Dev\TestOnly;
-use Page;

-class ContentControllerTestPage extends Page implements TestOnly
+class ContentControllerTestPage extends SiteTree implements TestOnly
 {
    private static $table_name = 'ContentControllerTestPage';
 }
--- a/tests/php/Controllers/ContentControllerTestPageController.php
+++ b/tests/php/Controllers/ContentControllerTestPageController.php
@ -9,7 +9,7 @@ class ContentControllerTestPageController extends PageController implements Test
 {
    private static $allowed_actions = [
        'test',
-        'testwithouttemplate'
+        'testwithouttemplate',
    ];

    public function testwithouttemplate()
--- a/tests/php/Controllers/ContentControllerTestPageWithoutController.php
+++ b/tests/php/Controllers/ContentControllerTestPageWithoutController.php
@ -2,10 +2,9 @@

 namespace SilverStripe\CMS\Tests\Controllers;

+use SilverStripe\CMS\Model\SiteTree;
 use SilverStripe\Dev\TestOnly;
-use Page;

-class ContentControllerTestPageWithoutController extends Page implements TestOnly
+class ContentControllerTestPageWithoutController extends SiteTree implements TestOnly
 {
-
 }
--- a/tests/php/Controllers/ContentControllerTest_Page.php
+++ b/tests/php/Controllers/ContentControllerTest_Page.php
@ -2,10 +2,10 @@

 namespace SilverStripe\CMS\Tests\Controllers;

+use SilverStripe\CMS\Model\SiteTree;
 use SilverStripe\Dev\TestOnly;
-use Page;

-class ContentControllerTest_Page extends Page implements TestOnly
+class ContentControllerTest_Page extends SiteTree implements TestOnly
 {
    private static $table_name = 'ContentControllerTest_Page';
 }
--- a/tests/php/Controllers/ContentControllerTest_PageController.php
+++ b/tests/php/Controllers/ContentControllerTest_PageController.php
@ -2,14 +2,13 @@

 namespace SilverStripe\CMS\Tests\Controllers;

+use SilverStripe\CMS\Controllers\ContentController;
 use SilverStripe\Dev\TestOnly;
-use PageController;

-class ContentControllerTest_PageController extends PageController implements TestOnly
+class ContentControllerTest_PageController extends ContentController implements TestOnly
 {
-
    private static $allowed_actions = [
-        'second_index'
+        'second_index',
    ];

    public function index()
--- a/tests/php/Controllers/ModelAsControllerTest.php
+++ b/tests/php/Controllers/ModelAsControllerTest.php
@ -10,7 +10,6 @@ use SilverStripe\Core\Config\Config;
 use SilverStripe\Control\Director;
 use SilverStripe\Control\Controller;
 use SilverStripe\Dev\FunctionalTest;
-use Page;
 use SilverStripe\View\Parsers\URLSegmentFilter;

 class ModelAsControllerTest extends FunctionalTest
@ -34,7 +33,7 @@ class ModelAsControllerTest extends FunctionalTest

    protected function generateNestedPagesFixture()
    {
-        $level1 = new Page();
+        $level1 = new SiteTree();
        $level1->Title      = 'First Level';
        $level1->URLSegment = 'level1';
        $level1->write();
@ -44,7 +43,7 @@ class ModelAsControllerTest extends FunctionalTest
        $level1->write();
        $level1->copyVersionToStage(Versioned::DRAFT, Versioned::LIVE);

-        $level2 = new Page();
+        $level2 = new SiteTree();
        $level2->Title      = 'Second Level';
        $level2->URLSegment = 'level2';
        $level2->ParentID = $level1->ID;
@ -55,7 +54,7 @@ class ModelAsControllerTest extends FunctionalTest
        $level2->write();
        $level2->copyVersionToStage(Versioned::DRAFT, Versioned::LIVE);

-        $level3 = new Page();
+        $level3 = new SiteTree();
        $level3->Title = "Level 3";
        $level3->URLSegment = 'level3';
        $level3->ParentID = $level2->ID;
@ -93,7 +92,7 @@ class ModelAsControllerTest extends FunctionalTest
        $response = $this->get('newlevel1/level2');
        $this->assertEquals($response->getStatusCode(), 301);
        $this->assertEquals(
-            Controller::join_links(Director::baseURL() . 'newlevel1/newlevel2/'),
+            Controller::join_links(Director::baseURL() . 'newlevel1/newlevel2'),
            $response->getHeader('Location')
        );

@ -101,7 +100,7 @@ class ModelAsControllerTest extends FunctionalTest
        $response = $this->get('newlevel1/newlevel2/level3');
        $this->assertEquals($response->getStatusCode(), 301);
        $this->assertEquals(
-            Controller::join_links(Director::baseURL() . 'newlevel1/newlevel2/newlevel3/'),
+            Controller::join_links(Director::baseURL() . 'newlevel1/newlevel2/newlevel3'),
            $response->getHeader('Location')
        );

@ -115,7 +114,7 @@ class ModelAsControllerTest extends FunctionalTest
     */
    public function testHeavilyNestedRenamedRedirectedPages()
    {
-        $page = new Page();
+        $page = new SiteTree();
        $page->Title      = 'First Level';
        $page->URLSegment = 'oldurl';
        $page->write();
@ -125,28 +124,28 @@ class ModelAsControllerTest extends FunctionalTest
        $page->write();
        $page->copyVersionToStage(Versioned::DRAFT, Versioned::LIVE);

-        $page2 = new Page();
+        $page2 = new SiteTree();
        $page2->Title      = 'Second Level Page';
        $page2->URLSegment = 'level2';
        $page2->ParentID = $page->ID;
        $page2->write();
        $page2->copyVersionToStage(Versioned::DRAFT, Versioned::LIVE);

-        $page3 = new Page();
+        $page3 = new SiteTree();
        $page3->Title      = 'Third Level Page';
        $page3->URLSegment = 'level3';
        $page3->ParentID = $page2->ID;
        $page3->write();
        $page3->copyVersionToStage(Versioned::DRAFT, Versioned::LIVE);

-        $page4 = new Page();
+        $page4 = new SiteTree();
        $page4->Title      = 'Fourth Level Page';
        $page4->URLSegment = 'level4';
        $page4->ParentID = $page3->ID;
        $page4->write();
        $page4->copyVersionToStage(Versioned::DRAFT, Versioned::LIVE);

-        $page5 = new Page();
+        $page5 = new SiteTree();
        $page5->Title      = 'Fifth Level Page';
        $page5->URLSegment = 'level5';
        $page5->ParentID = $page4->ID;
@ -154,10 +153,10 @@ class ModelAsControllerTest extends FunctionalTest
        $page5->copyVersionToStage(Versioned::DRAFT, Versioned::LIVE);

        // Test that the redirect still works fine when trying to access the most nested page
-        $response = $this->get('oldurl/level2/level3/level4/level5/');
+        $response = $this->get('oldurl/level2/level3/level4/level5');
        $this->assertEquals($response->getStatusCode(), 301);
        $this->assertEquals(
-            Controller::join_links(Director::baseURL() . 'newurl/level2/level3/level4/level5/'),
+            Controller::join_links(Director::baseURL() . 'newurl/level2/level3/level4/level5'),
            $response->getHeader('Location')
        );
    }
@ -171,7 +170,7 @@ class ModelAsControllerTest extends FunctionalTest
        $response = $this->get('newlevel3');
        $this->assertEquals(301, $response->getStatusCode());
        $this->assertEquals(
-            Director::baseURL() . 'newlevel1/newlevel2/newlevel3/',
+            Director::baseURL() . 'newlevel1/newlevel2/newlevel3',
            $response->getHeader("Location")
        );

@ -179,7 +178,7 @@ class ModelAsControllerTest extends FunctionalTest
        $response = $this->get('level3');
        $this->assertEquals(301, $response->getStatusCode());
        $this->assertEquals(
-            Director::baseURL() . 'newlevel1/newlevel2/newlevel3/',
+            Director::baseURL() . 'newlevel1/newlevel2/newlevel3',
            $response->getHeader("Location")
        );
    }
@ -188,8 +187,8 @@ class ModelAsControllerTest extends FunctionalTest
    {
        $this->generateNestedPagesFixture();

-        $otherParent = new Page([
-            'URLSegment' => 'otherparent'
+        $otherParent = new SiteTree([
+            'URLSegment' => 'otherparent',
        ]);
        $otherParent->write();
        $otherParent->copyVersionToStage(Versioned::DRAFT, Versioned::LIVE);
@ -215,10 +214,10 @@ class ModelAsControllerTest extends FunctionalTest
        $this->generateNestedPagesFixture();

        // check third level URLSegment
-        $response = $this->get('newlevel1/newlevel2/level3/?foo=bar&test=test');
+        $response = $this->get('newlevel1/newlevel2/level3?foo=bar&test=test');
        $this->assertEquals($response->getStatusCode(), 301);
        $this->assertEquals(
-            Controller::join_links(Director::baseURL() . 'newlevel1/newlevel2/newlevel3/', '?foo=bar&test=test'),
+            Controller::join_links(Director::baseURL() . 'newlevel1/newlevel2/newlevel3', '?foo=bar&test=test'),
            $response->getHeader('Location')
        );
    }
@ -232,9 +231,9 @@ class ModelAsControllerTest extends FunctionalTest
    {
        $this->generateNestedPagesFixture();

-        $otherLevel1 = new Page([
+        $otherLevel1 = new SiteTree([
            'Title' => "Other Level 1",
-            'URLSegment' => 'level1'
+            'URLSegment' => 'level1',
        ]);
        $otherLevel1->write();
        $otherLevel1->copyVersionToStage(Versioned::DRAFT, Versioned::LIVE);
@ -260,7 +259,7 @@ class ModelAsControllerTest extends FunctionalTest
     */
    public function testFindOldPage()
    {
-        $page = new Page();
+        $page = new SiteTree();
        $page->Title      = 'First Level';
        $page->URLSegment = 'oldurl';
        $page->write();
@ -274,7 +273,7 @@ class ModelAsControllerTest extends FunctionalTest
        $matchedPage = SiteTree::get_by_link($url);
        $this->assertEquals('First Level', $matchedPage->Title);

-        $page2 = new Page();
+        $page2 = new SiteTree();
        $page2->Title      = 'Second Level Page';
        $page2->URLSegment = 'oldpage2';
        $page2->ParentID = $page->ID;
@ -304,12 +303,12 @@ class ModelAsControllerTest extends FunctionalTest
        RootURLController::reset();
        Config::modify()->set(SiteTree::class, 'nested_urls', true);

-        $draft = new Page();
+        $draft = new SiteTree();
        $draft->Title = 'Root Leve Draft Page';
        $draft->URLSegment = 'root';
        $draft->write();

-        $published = new Page();
+        $published = new SiteTree();
        $published->Title = 'Published Page Under Draft Page';
        $published->URLSegment = 'sub-root';
        $published->write();
@ -319,7 +318,8 @@ class ModelAsControllerTest extends FunctionalTest
        $this->assertEquals(
            $response->getStatusCode(),
            404,
-            'The page should not be found since its parent has not been published, in this case http://<yousitename>/root/sub-root or http://<yousitename>/sub-root'
+            'The page should not be found since its parent has not been published, in this case ' .
+            'http://<yousitename>/root/sub-root or http://<yousitename>/sub-root'
        );
    }

@ -327,13 +327,13 @@ class ModelAsControllerTest extends FunctionalTest
    {
        Config::modify()->set(URLSegmentFilter::class, 'default_allow_multibyte', true);

-        $parent = new Page();
+        $parent = new SiteTree();
        $parent->Title = 'Multibyte test';
        $parent->URLSegment = 'بلاگ';
        $parent->write();
        $parent->copyVersionToStage(Versioned::DRAFT, Versioned::LIVE);

-        $child = new Page();
+        $child = new SiteTree();
        $child->Title = 'Multibyte test';
        $child->URLSegment = 'فضة';
        $child->ParentID = $parent->ID;
--- a/tests/php/Controllers/RootURLControllerTest.php
+++ b/tests/php/Controllers/RootURLControllerTest.php
@ -13,7 +13,7 @@ class RootURLControllerTest extends SapphireTest

    public function testGetHomepageLink()
    {
-        $default = $this->objFromFixture('Page', 'home');
+        $default = $this->objFromFixture(SiteTree::class, 'home');

        Config::modify()->set(SiteTree::class, 'nested_urls', false);
        $this->assertEquals('home', RootURLController::get_homepage_link());
--- a/tests/php/Controllers/RootURLControllerTest.yml
+++ b/tests/php/Controllers/RootURLControllerTest.yml
@ -1,9 +1,9 @@
-Page:
+SilverStripe\CMS\Model\SiteTree:
  home:
    Title: Home
  nested:
    Title: Nested Home
-    Parent: =>Page.home
+    Parent: =>SilverStripe\CMS\Model\SiteTree.home
  page1:
    Title: First Page
    URLSegment: page1
--- a/tests/php/Controllers/SilverStripeNavigatorTest.php
+++ b/tests/php/Controllers/SilverStripeNavigatorTest.php
@ -1,239 +0,0 @@
-<?php
-
-namespace SilverStripe\CMS\Tests\Controllers;
-
-use SilverStripe\CMS\Controllers\SilverStripeNavigator;
-use SilverStripe\CMS\Controllers\SilverStripeNavigatorItem_ArchiveLink;
-use SilverStripe\CMS\Controllers\SilverStripeNavigatorItem_LiveLink;
-use SilverStripe\CMS\Controllers\SilverStripeNavigatorItem_StageLink;
-use SilverStripe\CMS\Controllers\SilverStripeNavigatorItem_Unversioned;
-use SilverStripe\Dev\SapphireTest;
-use SilverStripe\Security\Member;
-
-class SilverStripeNavigatorTest extends SapphireTest
-{
-    protected static $fixture_file = 'CMSMainTest.yml';
-
-    protected static $extra_dataobjects = [
-        SilverStripeNavigatorTest\UnstagedRecord::class,
-        SilverStripeNavigatorTest\UnversionedRecord::class,
-        SilverStripeNavigatorTest\VersionedRecord::class,
-    ];
-
-    public function testGetItemsAutoDiscovery(): void
-    {
-        $record = new SilverStripeNavigatorTest\VersionedRecord();
-        $record->PreviewLinkTestProperty = 'some-value';
-        $record->write();
-        $navigator = new SilverStripeNavigator($record);
-        $classes = array_map('get_class', $navigator->getItems()->toArray());
-
-        $this->assertContains(
-            SilverStripeNavigatorTest_TestItem::class,
-            $classes,
-            'Autodiscovers new classes'
-        );
-    }
-
-    public function testGetItemsPublished(): void
-    {
-        $record = new SilverStripeNavigatorTest\VersionedRecord();
-        $record->PreviewLinkTestProperty = 'some-value';
-        $record->write();
-        $record->publishRecursive();
-        $navigator = new SilverStripeNavigator($record);
-        $classes = array_map('get_class', $navigator->getItems()->toArray());
-
-        // Has the live and staged links
-        $this->assertContains(SilverStripeNavigatorItem_LiveLink::class, $classes);
-        $this->assertContains(SilverStripeNavigatorItem_StageLink::class, $classes);
-
-        // Does not have the other links
-        $this->assertNotContains(SilverStripeNavigatorItem_ArchiveLink::class, $classes);
-        $this->assertNotContains(SilverStripeNavigatorItem_Unversioned::class, $classes);
-    }
-
-    public function testGetItemsStaged(): void
-    {
-        $record = new SilverStripeNavigatorTest\VersionedRecord();
-        $record->PreviewLinkTestProperty = 'some-value';
-        $record->write();
-        $navigator = new SilverStripeNavigator($record);
-        $classes = array_map('get_class', $navigator->getItems()->toArray());
-
-        // Has the stage link
-        $this->assertContains(SilverStripeNavigatorItem_StageLink::class, $classes);
-
-        // Does not have the other links
-        $this->assertNotContains(SilverStripeNavigatorItem_ArchiveLink::class, $classes);
-        $this->assertNotContains(SilverStripeNavigatorItem_LiveLink::class, $classes);
-        $this->assertNotContains(SilverStripeNavigatorItem_Unversioned::class, $classes);
-    }
-
-    public function testGetItemsArchived(): void
-    {
-        $record = new SilverStripeNavigatorTest\VersionedRecord();
-        $record->PreviewLinkTestProperty = 'some-value';
-        $record->write();
-        $record->doArchive();
-        $navigator = new SilverStripeNavigator($record);
-        $classes = array_map('get_class', $navigator->getItems()->toArray());
-
-        // Has the archived link
-        $this->assertContains(SilverStripeNavigatorItem_ArchiveLink::class, $classes);
-
-        // Does not have the other links
-        $this->assertNotContains(SilverStripeNavigatorItem_LiveLink::class, $classes);
-        $this->assertNotContains(SilverStripeNavigatorItem_StageLink::class, $classes);
-        $this->assertNotContains(SilverStripeNavigatorItem_UnversionedLink::class, $classes);
-    }
-
-    public function testGetItemsUnstaged(): void
-    {
-        $record = new SilverStripeNavigatorTest\UnstagedRecord();
-        $record->previewLinkTestProperty = 'some-value';
-        $record->write();
-        $navigator = new SilverStripeNavigator($record);
-        $classes = array_map('get_class', $navigator->getItems()->toArray());
-
-        // Has the unversioned link
-        $this->assertContains(SilverStripeNavigatorItem_Unversioned::class, $classes);
-
-        // Does not have the other links
-        $this->assertNotContains(SilverStripeNavigatorItem_ArchiveLink::class, $classes);
-        $this->assertNotContains(SilverStripeNavigatorItem_LiveLink::class, $classes);
-        $this->assertNotContains(SilverStripeNavigatorItem_StageLink::class, $classes);
-    }
-
-    public function testGetItemsUnversioned(): void
-    {
-        $record = new SilverStripeNavigatorTest\UnversionedRecord();
-        $record->previewLinkTestProperty = 'some-value';
-        $record->write();
-        $navigator = new SilverStripeNavigator($record);
-        $classes = array_map('get_class', $navigator->getItems()->toArray());
-
-        // Has the unversioned link
-        $this->assertContains(SilverStripeNavigatorItem_Unversioned::class, $classes);
-
-        // Does not have the other links
-        $this->assertNotContains(SilverStripeNavigatorItem_ArchiveLink::class, $classes);
-        $this->assertNotContains(SilverStripeNavigatorItem_LiveLink::class, $classes);
-        $this->assertNotContains(SilverStripeNavigatorItem_StageLink::class, $classes);
-    }
-
-    public function testCanViewPublished(): void
-    {
-        $record = new SilverStripeNavigatorTest\VersionedRecord();
-        $record->write();
-        $record->publishRecursive();
-        $liveLinkItem = new SilverStripeNavigatorItem_LiveLink($record);
-        $stagedLinkItem = new SilverStripeNavigatorItem_StageLink($record);
-        $archivedLinkItem = new SilverStripeNavigatorItem_ArchiveLink($record);
-        $unversionedLinkItem = new SilverStripeNavigatorItem_Unversioned($record);
-
-        // Cannot view staged and live links when there's no preview link
-        $this->assertFalse($liveLinkItem->canView());
-        $this->assertFalse($stagedLinkItem->canView());
-
-        $record->PreviewLinkTestProperty = 'some-value';
-        $record->write();
-        $record->publishRecursive();
-
-        // Can view staged and live links
-        $this->assertTrue($liveLinkItem->canView());
-        $this->assertTrue($stagedLinkItem->canView());
-        // Cannot view the other links
-        $this->assertFalse($archivedLinkItem->canView());
-        $this->assertFalse($unversionedLinkItem->canView());
-    }
-
-    public function testCanViewStaged(): void
-    {
-        $record = new SilverStripeNavigatorTest\VersionedRecord();
-        $record->write();
-        $liveLinkItem = new SilverStripeNavigatorItem_LiveLink($record);
-        $stagedLinkItem = new SilverStripeNavigatorItem_StageLink($record);
-        $archivedLinkItem = new SilverStripeNavigatorItem_ArchiveLink($record);
-        $unversionedLinkItem = new SilverStripeNavigatorItem_Unversioned($record);
-
-        // Cannot view staged link when there's no preview link
-        $this->assertFalse($stagedLinkItem->canView());
-
-        $record->PreviewLinkTestProperty = 'some-value';
-
-        // Can view staged link
-        $this->assertTrue($stagedLinkItem->canView());
-        // Cannot view the other links
-        $this->assertFalse($liveLinkItem->canView());
-        $this->assertFalse($archivedLinkItem->canView());
-        $this->assertFalse($unversionedLinkItem->canView());
-    }
-
-    public function testCanViewArchived(): void
-    {
-        $record = new SilverStripeNavigatorTest\VersionedRecord();
-        $record->write();
-        $record->doArchive();
-        $liveLinkItem = new SilverStripeNavigatorItem_LiveLink($record);
-        $stagedLinkItem = new SilverStripeNavigatorItem_StageLink($record);
-        $archivedLinkItem = new SilverStripeNavigatorItem_ArchiveLink($record);
-        $unversionedLinkItem = new SilverStripeNavigatorItem_Unversioned($record);
-
-        // Cannot view archived link when there's no preview link
-        $this->assertFalse($archivedLinkItem->canView());
-
-        $record->PreviewLinkTestProperty = 'some-value';
-
-        // Can view archived link
-        $this->assertTrue($archivedLinkItem->canView());
-        // Cannot view the other links
-        $this->assertFalse($liveLinkItem->canView());
-        $this->assertFalse($stagedLinkItem->canView());
-        $this->assertFalse($unversionedLinkItem->canView());
-    }
-
-    public function testCanViewUnstaged(): void
-    {
-        $record = new SilverStripeNavigatorTest\UnstagedRecord();
-        $record->write();
-        $liveLinkItem = new SilverStripeNavigatorItem_LiveLink($record);
-        $stagedLinkItem = new SilverStripeNavigatorItem_StageLink($record);
-        $archivedLinkItem = new SilverStripeNavigatorItem_ArchiveLink($record);
-        $unversionedLinkItem = new SilverStripeNavigatorItem_Unversioned($record);
-
-        // Cannot view unversioned link when there's no preview link
-        $this->assertFalse($unversionedLinkItem->canView());
-
-        $record->previewLinkTestProperty = 'some-value';
-
-        // Can view unversioned link
-        $this->assertTrue($unversionedLinkItem->canView());
-        // Cannot view the other links
-        $this->assertFalse($liveLinkItem->canView());
-        $this->assertFalse($stagedLinkItem->canView());
-        $this->assertFalse($archivedLinkItem->canView());
-    }
-
-    public function testCanViewUnversioned(): void
-    {
-        $record = new SilverStripeNavigatorTest\UnversionedRecord();
-        $record->write();
-        $liveLinkItem = new SilverStripeNavigatorItem_LiveLink($record);
-        $stagedLinkItem = new SilverStripeNavigatorItem_StageLink($record);
-        $archivedLinkItem = new SilverStripeNavigatorItem_ArchiveLink($record);
-        $unversionedLinkItem = new SilverStripeNavigatorItem_Unversioned($record);
-
-        // Cannot view unversioned link when there's no preview link
-        $this->assertFalse($unversionedLinkItem->canView());
-
-        $record->previewLinkTestProperty = 'some-value';
-
-        // Can view unversioned link
-        $this->assertTrue($unversionedLinkItem->canView());
-        // Cannot view the other links
-        $this->assertFalse($liveLinkItem->canView());
-        $this->assertFalse($stagedLinkItem->canView());
-        $this->assertFalse($archivedLinkItem->canView());
-    }
-}
--- a/tests/php/Controllers/SilverStripeNavigatorTest/UnstagedRecord.php
+++ b/tests/php/Controllers/SilverStripeNavigatorTest/UnstagedRecord.php
@ -1,48 +0,0 @@
-<?php
-
-namespace SilverStripe\CMS\Tests\Controllers\SilverStripeNavigatorTest;
-
-use SilverStripe\Dev\TestOnly;
-use SilverStripe\ORM\CMSPreviewable;
-use SilverStripe\ORM\DataObject;
-use SilverStripe\Versioned\Versioned;
-
-/**
- * Versioned but not staged
- */
-class UnstagedRecord extends DataObject implements TestOnly, CMSPreviewable
-{
-    private static $table_name = 'SilverStripeNavigatorTest_UnstagedRecord';
-
-    private static $show_stage_link = true;
-
-    private static $show_live_link = true;
-
-    private static $show_unversioned_preview_link = true;
-
-    private static $extensions = [
-        Versioned::class . '.versioned',
-    ];
-
-    public $previewLinkTestProperty = null;
-
-    public function PreviewLink($action = null)
-    {
-        return $this->previewLinkTestProperty;
-    }
-
-    /**
-     * To determine preview mechanism (e.g. embedded / iframe)
-     *
-     * @return string
-     */
-    public function getMimeType()
-    {
-        return 'text/html';
-    }
-
-    public function CMSEditLink()
-    {
-        return null;
-    }
-}
--- a/tests/php/Controllers/SilverStripeNavigatorTest/UnversionedRecord.php
+++ b/tests/php/Controllers/SilverStripeNavigatorTest/UnversionedRecord.php
@ -1,36 +0,0 @@
-<?php
-
-namespace SilverStripe\CMS\Tests\Controllers\SilverStripeNavigatorTest;
-
-use SilverStripe\Dev\TestOnly;
-use SilverStripe\ORM\CMSPreviewable;
-use SilverStripe\ORM\DataObject;
-use SilverStripe\Versioned\Versioned;
-
-class UnversionedRecord extends DataObject implements TestOnly, CMSPreviewable
-{
-    private static $table_name = 'SilverStripeNavigatorTest_UnversionedRecord';
-
-    private static $show_stage_link = true;
-
-    private static $show_live_link = true;
-
-    private static $show_unversioned_preview_link = true;
-
-    public $previewLinkTestProperty = null;
-
-    public function PreviewLink($action = null)
-    {
-        return $this->previewLinkTestProperty;
-    }
-
-    public function getMimeType()
-    {
-        return 'text/html';
-    }
-
-    public function CMSEditLink()
-    {
-        return null;
-    }
-}
--- a/tests/php/Controllers/SilverStripeNavigatorTest/VersionedRecord.php
+++ b/tests/php/Controllers/SilverStripeNavigatorTest/VersionedRecord.php
@ -1,42 +0,0 @@
-<?php
-
-namespace SilverStripe\CMS\Tests\Controllers\SilverStripeNavigatorTest;
-
-use SilverStripe\Dev\TestOnly;
-use SilverStripe\ORM\CMSPreviewable;
-use SilverStripe\ORM\DataObject;
-use SilverStripe\Versioned\Versioned;
-
-class VersionedRecord extends DataObject implements TestOnly, CMSPreviewable
-{
-    private static $table_name = 'SilverStripeNavigatorTest_VersionedRecord';
-
-    private static $show_stage_link = true;
-
-    private static $show_live_link = true;
-
-    private static $show_unversioned_preview_link = true;
-
-    private static $db = [
-        'PreviewLinkTestProperty' => 'Text',
-    ];
-
-    private static $extensions = [
-        Versioned::class,
-    ];
-
-    public function PreviewLink($action = null)
-    {
-        return $this->PreviewLinkTestProperty;
-    }
-
-    public function getMimeType()
-    {
-        return 'text/html';
-    }
-
-    public function CMSEditLink()
-    {
-        return null;
-    }
-}
--- a/tests/php/Controllers/SilverStripeNavigatorTest_TestItem.php
+++ b/tests/php/Controllers/SilverStripeNavigatorTest_TestItem.php
@ -1,19 +0,0 @@
-<?php
-
-namespace SilverStripe\CMS\Tests\Controllers;
-
-use SilverStripe\CMS\Controllers\SilverStripeNavigatorItem;
-use SilverStripe\Dev\TestOnly;
-
-class SilverStripeNavigatorTest_TestItem extends SilverStripeNavigatorItem implements TestOnly
-{
-    public function getTitle()
-    {
-        return self::class;
-    }
-
-    public function getHTML()
-    {
-        return null;
-    }
-}
--- a/tests/php/GraphQL/LinkablePluginTest.php
+++ b/tests/php/GraphQL/LinkablePluginTest.php
@ -44,7 +44,7 @@ class LinkablePluginTest extends SapphireTest

    public function testResolver()
    {
-        $page = SiteTree::create([
+        $page = new SiteTree([
            'Title' => 'Test page',
            'URLSegment' => 'test-page',
            'ParentID' => 0,
@ -52,7 +52,7 @@ class LinkablePluginTest extends SapphireTest
        $page->write();
        $page->publishRecursive();

-        $page = SiteTree::create([
+        $page = new SiteTree([
            'Title' => 'Other test page',
            'URLSegment' => 'other-test-page',
            'ParentID' => 0,
--- a/tests/php/Model/RedirectorPageTest.php
+++ b/tests/php/Model/RedirectorPageTest.php
@ -2,7 +2,7 @@

 namespace SilverStripe\CMS\Tests\Model;

-use Page;
+use SilverStripe\CMS\Model\SiteTree;
 use SilverStripe\CMS\Model\RedirectorPage;
 use SilverStripe\CMS\Model\RedirectorPageController;
 use SilverStripe\Control\Director;
@ -36,53 +36,65 @@ class RedirectorPageTest extends FunctionalTest
        Director::config()->set('alternate_base_url', 'http://www.mysite.com/');

        // Ensure all pages are published
-        /** @var Page $page */
-        foreach (Page::get() as $page) {
+        /** @var SiteTree $page */
+        foreach (SiteTree::get() as $page) {
            $page->publishSingle();
        }
    }

    public function testGoodRedirectors()
    {
-        /* For good redirectors, the final destination URL will be returned */
-        $this->assertEquals("http://www.google.com", $this->objFromFixture(RedirectorPage::class, 'goodexternal')->Link());
-        $this->assertEquals("/redirection-dest/", $this->objFromFixture(RedirectorPage::class, 'goodinternal')->redirectionLink());
-        $this->assertEquals("/redirection-dest/", $this->objFromFixture(RedirectorPage::class, 'goodinternal')->Link());
+        // For good redirectors, the final destination URL will be returned
+        $this->assertEquals(
+            "http://www.google.com",
+            $this->objFromFixture(RedirectorPage::class, 'goodexternal')->Link()
+        );
+        $this->assertEquals(
+            "/redirection-dest",
+            $this->objFromFixture(RedirectorPage::class, 'goodinternal')->redirectionLink()
+        );
+        $this->assertEquals(
+            "/redirection-dest",
+            $this->objFromFixture(RedirectorPage::class, 'goodinternal')->Link()
+        );
    }

    public function testEmptyRedirectors()
    {
-        /* If a redirector page is misconfigured, then its link method will just return the usual URLSegment-generated value */
+        // If a redirector page is misconfigured, then its link method will just return the usual
+        // URLSegment-generated value
        $page1 = $this->objFromFixture(RedirectorPage::class, 'badexternal');
-        $this->assertEquals('/bad-external/', $page1->Link());
+        $this->assertEquals('/bad-external', $page1->Link());

-        /* An error message will be shown if you visit it */
+        // An error message will be shown if you visit it
        $content = $this->get(Director::makeRelative($page1->Link()))->getBody();
        $this->assertStringContainsString('message-setupWithoutRedirect', $content);

-        /* This also applies for internal links */
+        // This also applies for internal links
        $page2 = $this->objFromFixture(RedirectorPage::class, 'badinternal');
-        $this->assertEquals('/bad-internal/', $page2->Link());
+        $this->assertEquals('/bad-internal', $page2->Link());
        $content = $this->get(Director::makeRelative($page2->Link()))->getBody();
        $this->assertStringContainsString('message-setupWithoutRedirect', $content);
    }

    public function testReflexiveAndTransitiveInternalRedirectors()
    {
-        /* Reflexive redirectors are those that point to themselves.  They should behave the same as an empty redirector */
+        // Reflexive redirectors are those that point to themselves.
+        // They should behave the same as an empty redirector
        $page = $this->objFromFixture(RedirectorPage::class, 'reflexive');
-        $this->assertEquals('/reflexive/', $page->Link());
+        $this->assertEquals('/reflexive', $page->Link());
        $content = $this->get(Director::makeRelative($page->Link()))->getBody();
        $this->assertStringContainsString('message-setupWithoutRedirect', $content);

-        /* Transitive redirectors are those that point to another redirector page.  They should send people to the URLSegment
-         * of the destination page - the middle-stop, so to speak.  That should redirect to the final destination */
+        // Transitive redirectors are those that point to another redirector page.
+        // They should send people to the URLSegment of the destination page - the middle-stop, so to speak.
+        // That should redirect to the final destination
        $page = $this->objFromFixture(RedirectorPage::class, 'transitive');
-        $this->assertEquals('/good-internal/', $page->Link());
+        $this->assertEquals('/good-internal', $page->Link());

        $this->autoFollowRedirection = false;
        $response = $this->get(Director::makeRelative($page->Link()));
-        $this->assertEquals(Director::absoluteURL('/redirection-dest/'), $response->getHeader("Location"));
+        $this->assertEquals(Director::absoluteURL('/redirection-dest'), $response->getHeader("Location"));
    }

    public function testExternalURLGetsPrefixIfNotSet()
@ -90,7 +102,11 @@ class RedirectorPageTest extends FunctionalTest
        $page = $this->objFromFixture(RedirectorPage::class, 'externalnoprefix');
        $this->assertEquals($page->ExternalURL, 'http://google.com', 'onBeforeWrite has prefixed with http');
        $page->write();
-        $this->assertEquals($page->ExternalURL, 'http://google.com', 'onBeforeWrite will not double prefix if written again!');
+        $this->assertEquals(
+            $page->ExternalURL,
+            'http://google.com',
+            'onBeforeWrite will not double prefix if written again!'
+        );
    }

    public function testAllowsProtocolRelative()
--- a/tests/php/Model/RedirectorPageTest.yml
+++ b/tests/php/Model/RedirectorPageTest.yml
@ -1,4 +1,4 @@
-Page:
+SilverStripe\CMS\Model\SiteTree:
  dest:
    Title: Redirection Dest
    URLSegment: redirection-dest
@ -17,7 +17,7 @@ SilverStripe\CMS\Model\RedirectorPage:
    Title: Good Internal
    URLSegment: good-internal
    RedirectionType: Internal
-    LinkTo: =>Page.dest
+    LinkTo: =>SilverStripe\CMS\Model\SiteTree.dest
  badexternal:
    Title: Bad External
    RedirectionType: External
--- a/tests/php/Model/SiteTreeActionsTest.php
+++ b/tests/php/Model/SiteTreeActionsTest.php
@ -2,7 +2,6 @@

 namespace SilverStripe\CMS\Tests\Model;

-use Page;
 use SilverStripe\CMS\Model\SiteTree;
 use SilverStripe\Dev\FunctionalTest;
 use SilverStripe\ORM\DB;
@ -21,7 +20,6 @@ use SilverStripe\Versioned\Versioned;
 */
 class SiteTreeActionsTest extends FunctionalTest
 {
-
    protected static $fixture_file = 'SiteTreeActionsTest.yml';

    public function testActionsReadonly()
@ -38,7 +36,7 @@ class SiteTreeActionsTest extends FunctionalTest
        Security::setCurrentUser($readonlyEditor);

        // Reload latest version
-        $page = Page::get()->byID($page->ID);
+        $page = SiteTree::get()->byID($page->ID);
        $actions = $page->getCMSActions();

        $this->assertNull($actions->dataFieldByName('action_save'));
@ -84,14 +82,14 @@ class SiteTreeActionsTest extends FunctionalTest
        $author = $this->objFromFixture(Member::class, 'cmseditor');
        Security::setCurrentUser($author);

-        /** @var Page $page */
-        $page = new Page();
+        /** @var SiteTree $page */
+        $page = new SiteTree();
        $page->CanEditType = 'LoggedInUsers';
        $page->write();
        $page->publishRecursive();

        // Reload latest version
-        $page = Page::get()->byID($page->ID);
+        $page = SiteTree::get()->byID($page->ID);

        $actions = $page->getCMSActions();

@ -108,7 +106,7 @@ class SiteTreeActionsTest extends FunctionalTest
        $author = $this->objFromFixture(Member::class, 'cmseditor');
        Security::setCurrentUser($author);

-        $page = new Page();
+        $page = new SiteTree();
        $page->CanEditType = 'LoggedInUsers';
        $page->write();
        $this->assertTrue($page->canPublish());
@ -135,7 +133,7 @@ class SiteTreeActionsTest extends FunctionalTest
        $author = $this->objFromFixture(Member::class, 'cmseditor');
        Security::setCurrentUser($author);

-        $page = new Page();
+        $page = new SiteTree();
        $page->CanEditType = 'LoggedInUsers';
        $page->write();
        $this->assertTrue($page->canPublish());
@ -145,7 +143,7 @@ class SiteTreeActionsTest extends FunctionalTest
        $page->flushCache();

        // Reload latest version
-        $page = Page::get()->byID($page->ID);
+        $page = SiteTree::get()->byID($page->ID);

        $actions = $page->getCMSActions();
        $this->assertNotNull($actions->dataFieldByName('action_save'));
@ -158,15 +156,17 @@ class SiteTreeActionsTest extends FunctionalTest

    public function testActionsViewingOldVersion()
    {
-        $p = new Page();
+        $p = new SiteTree();
        $p->Content = 'test page first version';
        $p->write();
        $p->Content = 'new content';
        $p->write();

        // Looking at the old version, the ability to rollback to that version is available
-        $version = DB::query('SELECT "Version" FROM "SiteTree_Versions" WHERE "Content" = \'test page first version\'')->value();
-        $old = Versioned::get_version('Page', $p->ID, $version);
+        $version = DB::query(
+            'SELECT "Version" FROM "SiteTree_Versions" WHERE "Content" = \'test page first version\''
+        )->value();
+        $old = Versioned::get_version(SiteTree::class, $p->ID, $version);
        $actions = $old->getCMSActions();
        $this->assertNull($actions->dataFieldByName('action_save'));
        $this->assertNull($actions->dataFieldByName('action_publish'));
--- a/tests/php/Model/SiteTreeActionsTest_Page.php
+++ b/tests/php/Model/SiteTreeActionsTest_Page.php
@ -4,9 +4,9 @@ namespace SilverStripe\CMS\Tests\Model;

 use SilverStripe\Dev\TestOnly;
 use SilverStripe\Security\Permission;
-use Page;
+use SilverStripe\CMS\Model\SiteTree;

-class SiteTreeActionsTest_Page extends Page implements TestOnly
+class SiteTreeActionsTest_Page extends SiteTree implements TestOnly
 {
    public function canEdit($member = null)
    {
--- a/tests/php/Model/SiteTreeBacklinksTest.php
+++ b/tests/php/Model/SiteTreeBacklinksTest.php
@ -18,7 +18,7 @@ class SiteTreeBacklinksTest extends SapphireTest

    protected static $required_extensions = [
        SiteTree::class => [
-            SiteTreeBacklinksTest_DOD::class
+            SiteTreeBacklinksTest_DOD::class,
        ],
    ];

@ -34,10 +34,10 @@ class SiteTreeBacklinksTest extends SapphireTest
        // testing here.
        $this->logInWithPermission('ADMIN');

-        $page3 = $this->objFromFixture('Page', 'page3');
+        $page3 = $this->objFromFixture(SiteTree::class, 'page3');
        $page3->Content = str_replace(
            '$page1.ID',
-            $this->objFromFixture('Page', 'page1')->ID ?? '',
+            $this->objFromFixture(SiteTree::class, 'page1')->ID ?? '',
            $page3->Content ?? ''
        );
        $page3->write();
@ -46,18 +46,22 @@ class SiteTreeBacklinksTest extends SapphireTest
    public function testSavingPageWithLinkAddsBacklink()
    {
        // load page 1
-        $page1 = $this->objFromFixture('Page', 'page1');
+        $page1 = $this->objFromFixture(SiteTree::class, 'page1');

        // assert backlink to page 2 doesn't exist
-        $page2 = $this->objFromFixture('Page', 'page2');
-        $this->assertNotContains($page2->ID, $page1->BackLinkTracking()->column('ID'), 'Assert backlink to page 2 doesn\'t exist');
+        $page2 = $this->objFromFixture(SiteTree::class, 'page2');
+        $this->assertNotContains(
+            $page2->ID,
+            $page1->BackLinkTracking()->column('ID'),
+            'Assert backlink to page 2 doesn\'t exist'
+        );

        // add hyperlink to page 1 on page 2
-        $page2->Content .= '<p><a href="[sitetree_link,id='.$page1->ID.']">Testing page 1 link</a></p>';
+        $page2->Content .= '<p><a href="[sitetree_link,id=' . $page1->ID . ']">Testing page 1 link</a></p>';
        $page2->write();

        // load page 1
-        $page1 = $this->objFromFixture('Page', 'page1');
+        $page1 = $this->objFromFixture(SiteTree::class, 'page1');

        // assert backlink to page 2 exists
        $this->assertContains($page2->ID, $page1->BackLinkTracking()->column('ID'), 'Assert backlink to page 2 exists');
@ -66,10 +70,10 @@ class SiteTreeBacklinksTest extends SapphireTest
    public function testRemovingLinkFromPageRemovesBacklink()
    {
        // load page 1
-        $page1 = $this->objFromFixture('Page', 'page1');
+        $page1 = $this->objFromFixture(SiteTree::class, 'page1');

        // assert backlink to page 3 exits
-        $page3 = $this->objFromFixture('Page', 'page3');
+        $page3 = $this->objFromFixture(SiteTree::class, 'page3');
        $this->assertContains($page3->ID, $page1->BackLinkTracking()->column('ID'), 'Assert backlink to page 3 exists');

        // remove hyperlink to page 1
@ -77,116 +81,156 @@ class SiteTreeBacklinksTest extends SapphireTest
        $page3->write();

        // load page 1
-        $page1 = $this->objFromFixture('Page', 'page1');
+        $page1 = $this->objFromFixture(SiteTree::class, 'page1');

        // assert backlink to page 3 exists
-        $this->assertNotContains($page3->ID, $page1->BackLinkTracking()->column('ID'), 'Assert backlink to page 3 doesn\'t exist');
+        $this->assertNotContains(
+            $page3->ID,
+            $page1->BackLinkTracking()->column('ID'),
+            'Assert backlink to page 3 doesn\'t exist'
+        );
    }

    public function testChangingUrlOnDraftSiteRewritesLink()
    {
        // load page 1
-        $page1 = $this->objFromFixture('Page', 'page1');
+        $page1 = $this->objFromFixture(SiteTree::class, 'page1');

        // assert backlink to page 3 exists
-        $page3 = $this->objFromFixture('Page', 'page3');
+        $page3 = $this->objFromFixture(SiteTree::class, 'page3');
        $this->assertContains($page3->ID, $page1->BackLinkTracking()->column('ID'), 'Assert backlink to page 3 exists');

        // assert hyperlink to page 1's current url exists on page 3
        $links = HTTP::getLinksIn($page3->obj('Content')->forTemplate());
-        $this->assertContains(Director::baseURL().'page1/', $links, 'Assert hyperlink to page 1\'s current url exists on page 3');
+        $this->assertContains(
+            Director::baseURL() . 'page1',
+            $links,
+            'Assert hyperlink to page 1\'s current url exists on page 3'
+        );

        // change url of page 1
        $page1->URLSegment = 'new-url-segment';
        $page1->write();

        // load page 3
-        $page3 = $this->objFromFixture('Page', 'page3');
+        $page3 = $this->objFromFixture(SiteTree::class, 'page3');

        // assert hyperlink to page 1's new url exists
        $links = HTTP::getLinksIn($page3->obj('Content')->forTemplate());
-        $this->assertContains(Director::baseURL().'new-url-segment/', $links, 'Assert hyperlink to page 1\'s new url exists on page 3');
+        $this->assertContains(
+            Director::baseURL() . 'new-url-segment',
+            $links,
+            'Assert hyperlink to page 1\'s new url exists on page 3'
+        );
    }

    public function testChangingUrlOnLiveSiteRewritesLink()
    {
        // publish page 1 & 3
-        $page1 = $this->objFromFixture('Page', 'page1');
-        $page3 = $this->objFromFixture('Page', 'page3');
+        $page1 = $this->objFromFixture(SiteTree::class, 'page1');
+        $page3 = $this->objFromFixture(SiteTree::class, 'page3');
        $this->assertTrue($page1->publishRecursive());
        $this->assertTrue($page3->publishRecursive());

        // load pages from live
-        $page1live = Versioned::get_one_by_stage('Page', 'Live', '"SiteTree"."ID" = ' . $page1->ID);
-        $page3live = Versioned::get_one_by_stage('Page', 'Live', '"SiteTree"."ID" = ' . $page3->ID);
+        $page1live = Versioned::get_one_by_stage(SiteTree::class, 'Live', '"SiteTree"."ID" = ' . $page1->ID);
+        $page3live = Versioned::get_one_by_stage(SiteTree::class, 'Live', '"SiteTree"."ID" = ' . $page3->ID);

        // assert backlink to page 3 exists
-        $this->assertContains($page3live->ID, $page1live->BackLinkTracking()->column('ID'), 'Assert backlink to page 3 exists');
+        $this->assertContains(
+            $page3live->ID,
+            $page1live->BackLinkTracking()->column('ID'),
+            'Assert backlink to page 3 exists'
+        );

        // assert hyperlink to page 1's current url exists on page 3
        $links = HTTP::getLinksIn($page3live->obj('Content')->forTemplate());
-        $this->assertContains(Director::baseURL().'page1/', $links, 'Assert hyperlink to page 1\'s current url exists on page 3');
+        $this->assertContains(
+            Director::baseURL() . 'page1',
+            $links,
+            'Assert hyperlink to page 1\'s current url exists on page 3'
+        );

        // change url of page 1
        $page1live->URLSegment = 'new-url-segment';
        $page1live->writeToStage('Live');

        // load page 3 from live
-        $page3live = Versioned::get_one_by_stage('Page', 'Live', '"SiteTree"."ID" = ' . $page3->ID);
+        $page3live = Versioned::get_one_by_stage(SiteTree::class, 'Live', '"SiteTree"."ID" = ' . $page3->ID);

        // assert hyperlink to page 1's new url exists
        Versioned::set_stage(Versioned::LIVE);
        $links = HTTP::getLinksIn($page3live->obj('Content')->forTemplate());
-        $this->assertContains(Director::baseURL().'new-url-segment/', $links, 'Assert hyperlink to page 1\'s new url exists on page 3');
+        $this->assertContains(
+            Director::baseURL() . 'new-url-segment',
+            $links,
+            'Assert hyperlink to page 1\'s new url exists on page 3'
+        );
    }

    public function testPublishingPageWithModifiedUrlRewritesLink()
    {
        // publish page 1 & 3
-        $page1 = $this->objFromFixture('Page', 'page1');
-        $page3 = $this->objFromFixture('Page', 'page3');
+        $page1 = $this->objFromFixture(SiteTree::class, 'page1');
+        $page3 = $this->objFromFixture(SiteTree::class, 'page3');

        $this->assertTrue($page1->publishRecursive());
        $this->assertTrue($page3->publishRecursive());

        // load page 3 from live
-        $page3live = Versioned::get_one_by_stage('Page', 'Live', '"SiteTree"."ID" = ' . $page3->ID);
+        $page3live = Versioned::get_one_by_stage(SiteTree::class, 'Live', '"SiteTree"."ID" = ' . $page3->ID);

        // assert hyperlink to page 1's current url exists
        $links = HTTP::getLinksIn($page3live->obj('Content')->forTemplate());
-        $this->assertContains(Director::baseURL().'page1/', $links, 'Assert hyperlink to page 1\'s current url exists on page 3');
+        $this->assertContains(
+            Director::baseURL() . 'page1',
+            $links,
+            'Assert hyperlink to page 1\'s current url exists on page 3'
+        );

        // rename url of page 1 on stage
        $page1->URLSegment = 'new-url-segment';
        $page1->write();

        // assert hyperlink to page 1's current publish url exists
-        $page3live = Versioned::get_one_by_stage('Page', 'Live', '"SiteTree"."ID" = ' . $page3->ID);
+        $page3live = Versioned::get_one_by_stage(SiteTree::class, 'Live', '"SiteTree"."ID" = ' . $page3->ID);
        Versioned::set_stage(Versioned::LIVE);
        $links = HTTP::getLinksIn($page3live->obj('Content')->forTemplate());
-        $this->assertContains(Director::baseURL().'page1/', $links, 'Assert hyperlink to page 1\'s current published url exists on page 3');
+        $this->assertContains(
+            Director::baseURL() . 'page1',
+            $links,
+            'Assert hyperlink to page 1\'s current published url exists on page 3'
+        );


        // publish page 1
        $this->assertTrue($page1->publishRecursive());

        // assert hyperlink to page 1's new published url exists
-        $page3live = Versioned::get_one_by_stage('Page', 'Live', '"SiteTree"."ID" = ' . $page3->ID);
+        $page3live = Versioned::get_one_by_stage(SiteTree::class, 'Live', '"SiteTree"."ID" = ' . $page3->ID);
        $links = HTTP::getLinksIn($page3live->obj('Content')->forTemplate());
-        $this->assertContains(Director::baseURL().'new-url-segment/', $links, 'Assert hyperlink to page 1\'s new published url exists on page 3');
+        $this->assertContains(
+            Director::baseURL() . 'new-url-segment',
+            $links,
+            'Assert hyperlink to page 1\'s new published url exists on page 3'
+        );
    }

    public function testPublishingPageWithModifiedLinksRewritesLinks()
    {
        // publish page 1 & 3
-        $page1 = $this->objFromFixture('Page', 'page1');
-        $page3 = $this->objFromFixture('Page', 'page3');
+        $page1 = $this->objFromFixture(SiteTree::class, 'page1');
+        $page3 = $this->objFromFixture(SiteTree::class, 'page3');
        $this->assertTrue($page1->publishRecursive());
        $this->assertTrue($page3->publishRecursive());

        // assert hyperlink to page 1's current url exists
        $links = HTTP::getLinksIn($page3->obj('Content')->forTemplate());
-        $this->assertContains(Director::baseURL().'page1/', $links, 'Assert hyperlink to page 1\'s current published url exists on page 3');
+        $this->assertContains(
+            Director::baseURL() . 'page1',
+            $links,
+            'Assert hyperlink to page 1\'s current published url exists on page 3'
+        );

        // change page 1 url on draft
        $page1->URLSegment = 'new-url-segment';
@ -195,42 +239,58 @@ class SiteTreeBacklinksTest extends SapphireTest
        $page1->write();

        // assert page 3 on draft contains new page 1 url
-        $page3 = $this->objFromFixture('Page', 'page3');
+        $page3 = $this->objFromFixture(SiteTree::class, 'page3');
        $links = HTTP::getLinksIn($page3->obj('Content')->forTemplate());
-        $this->assertContains(Director::baseURL().'new-url-segment/', $links, 'Assert hyperlink to page 1\'s current draft url exists on page 3');
+        $this->assertContains(
+            Director::baseURL() . 'new-url-segment',
+            $links,
+            'Assert hyperlink to page 1\'s current draft url exists on page 3'
+        );

        // publish page 3
        $this->assertTrue($page3->publishRecursive());

        // assert page 3 on published site contains old page 1 url
-        $page3live = Versioned::get_one_by_stage('Page', 'Live', '"SiteTree"."ID" = ' . $page3->ID);
+        $page3live = Versioned::get_one_by_stage(SiteTree::class, 'Live', '"SiteTree"."ID" = ' . $page3->ID);
        Versioned::set_stage(Versioned::LIVE);
        $links = HTTP::getLinksIn($page3live->obj('Content')->forTemplate());
-        $this->assertContains(Director::baseURL().'page1/', $links, 'Assert hyperlink to page 1\'s current published url exists on page 3');
+        $this->assertContains(
+            Director::baseURL() . 'page1',
+            $links,
+            'Assert hyperlink to page 1\'s current published url exists on page 3'
+        );

        // publish page 1
        $this->assertTrue($page1->publishRecursive());

        // assert page 3 on published site contains new page 1 url
-        $page3live = Versioned::get_one_by_stage('Page', 'Live', '"SiteTree"."ID" = ' . $page3->ID);
+        $page3live = Versioned::get_one_by_stage(SiteTree::class, 'Live', '"SiteTree"."ID" = ' . $page3->ID);
        $links = HTTP::getLinksIn($page3live->obj('Content')->forTemplate());
-        $this->assertContains(Director::baseURL().'new-url-segment/', $links, 'Assert hyperlink to page 1\'s current published url exists on page 3');
+        $this->assertContains(
+            Director::baseURL() . 'new-url-segment',
+            $links,
+            'Assert hyperlink to page 1\'s current published url exists on page 3'
+        );
    }

    public function testLinkTrackingOnExtraContentFields()
    {
-        /** @var Page $page1 */
-        $page1 = $this->objFromFixture('Page', 'page1');
-        /** @var Page $page2 */
-        $page2 = $this->objFromFixture('Page', 'page2');
+        /** @var SiteTree $page1 */
+        $page1 = $this->objFromFixture(SiteTree::class, 'page1');
+        /** @var SiteTree $page2 */
+        $page2 = $this->objFromFixture(SiteTree::class, 'page2');
        $page1->publishRecursive();
        $page2->publishRecursive();

        // assert backlink to page 2 doesn't exist
-        $this->assertNotContains($page2->ID, $page1->BackLinkTracking()->column('ID'), 'Assert backlink to page 2 doesn\'t exist');
+        $this->assertNotContains(
+            $page2->ID,
+            $page1->BackLinkTracking()->column('ID'),
+            'Assert backlink to page 2 doesn\'t exist'
+        );

        // add hyperlink to page 1 on page 2
-        $page2->ExtraContent .= '<p><a href="[sitetree_link,id='.$page1->ID.']">Testing page 1 link</a></p>';
+        $page2->ExtraContent .= '<p><a href="[sitetree_link,id=' . $page1->ID . ']">Testing page 1 link</a></p>';
        $page2->write();
        $page2->publishRecursive();

@ -238,23 +298,32 @@ class SiteTreeBacklinksTest extends SapphireTest
        $this->assertContains($page2->ID, $page1->BackLinkTracking()->column('ID'), 'Assert backlink to page 2 exists');

        // update page1 url
-        $page1 = $this->objFromFixture('Page', 'page1');
+        $page1 = $this->objFromFixture(SiteTree::class, 'page1');
        $page1->URLSegment = "page1-new-url";
        $page1->write();

        // confirm that draft link on page2 has been rewritten
-        $page2 = $this->objFromFixture('Page', 'page2');
-        $this->assertEquals('<p><a href="'.Director::baseURL().'page1-new-url/">Testing page 1 link</a></p>', $page2->obj('ExtraContent')->forTemplate());
+        $page2 = $this->objFromFixture(SiteTree::class, 'page2');
+        $this->assertEquals(
+            '<p><a href="' . Director::baseURL() . 'page1-new-url">Testing page 1 link</a></p>',
+            $page2->obj('ExtraContent')->forTemplate()
+        );

        // confirm that published link hasn't
-        $page2Live = Versioned::get_one_by_stage("Page", "Live", "\"SiteTree\".\"ID\" = $page2->ID");
+        $page2Live = Versioned::get_one_by_stage(SiteTree::class, "Live", "\"SiteTree\".\"ID\" = $page2->ID");
        Versioned::set_stage(Versioned::LIVE);
-        $this->assertEquals('<p><a href="'.Director::baseURL().'page1/">Testing page 1 link</a></p>', $page2Live->obj('ExtraContent')->forTemplate());
+        $this->assertEquals(
+            '<p><a href="' . Director::baseURL() . 'page1">Testing page 1 link</a></p>',
+            $page2Live->obj('ExtraContent')->forTemplate()
+        );

        // publish page1 and confirm that the link on the published page2 has now been updated
        $page1->publishRecursive();
-        $page2Live = Versioned::get_one_by_stage("Page", "Live", "\"SiteTree\".\"ID\" = $page2->ID");
-        $this->assertEquals('<p><a href="'.Director::baseURL().'page1-new-url/">Testing page 1 link</a></p>', $page2Live->obj('ExtraContent')->forTemplate());
+        $page2Live = Versioned::get_one_by_stage(SiteTree::class, "Live", "\"SiteTree\".\"ID\" = $page2->ID");
+        $this->assertEquals(
+            '<p><a href="' . Director::baseURL() . 'page1-new-url">Testing page 1 link</a></p>',
+            $page2Live->obj('ExtraContent')->forTemplate()
+        );

        // Edit draft again
        Versioned::set_stage(Versioned::DRAFT);
@ -262,12 +331,16 @@ class SiteTreeBacklinksTest extends SapphireTest
        $page2->write();

        // assert backlink to page 2 no longer exists
-        $this->assertNotContains($page2->ID, $page1->BackLinkTracking()->column('ID'), 'Assert backlink to page 2 has been removed');
+        $this->assertNotContains(
+            $page2->ID,
+            $page1->BackLinkTracking()->column('ID'),
+            'Assert backlink to page 2 has been removed'
+        );
    }

    public function testLinkTrackingWithUntitledObjectsDisplaysAReadableIdentifier()
    {
-        $page = $this->objFromFixture('Page', 'page2');
+        $page = $this->objFromFixture(SiteTree::class, 'page2');

        $referencingObject = new SiteTreeBacklinksTestContentObject();
        $referencingObject->Content = '<p><a href="[sitetree_link,id='
--- a/tests/php/Model/SiteTreeBacklinksTest.yml
+++ b/tests/php/Model/SiteTreeBacklinksTest.yml
@ -1,4 +1,4 @@
-Page:
+SilverStripe\CMS\Model\SiteTree:
  page1:
    Title: page1
    URLSegment: page1
@ -11,6 +11,6 @@ Page:
    Title: page3
    URLSegment: page3
    Content: '<p><a href="[sitetree_link,id=$page1.ID]">Testing page 1 link</a></p>'
-    LinkTracking: =>Page.page1
+    LinkTracking: =>SilverStripe\CMS\Model\SiteTree.page1


--- a/tests/php/Model/SiteTreeBrokenLinksTest.php
+++ b/tests/php/Model/SiteTreeBrokenLinksTest.php
@ -2,7 +2,6 @@

 namespace SilverStripe\CMS\Tests\Model;

-use Page;
 use Silverstripe\Assets\Dev\TestAssetStore;
 use SilverStripe\CMS\Model\RedirectorPage;
 use SilverStripe\CMS\Model\SiteTree;
@ -42,15 +41,15 @@ class SiteTreeBrokenLinksTest extends SapphireTest

    public function testBrokenLinksBetweenPages()
    {
-        /** @var Page $obj */
-        $obj = $this->objFromFixture('Page', 'content');
+        /** @var SiteTree $obj */
+        $obj = $this->objFromFixture(SiteTree::class, 'content');

        $obj->Content = '<a href="[sitetree_link,id=3423423]">this is a broken link</a>';
        $obj->syncLinkTracking();
        $this->assertTrue($obj->HasBrokenLink, 'Page has a broken link');

        $obj->Content = '<a href="[sitetree_link,id=' . $this->idFromFixture(
-            'Page',
+            SiteTree::class,
            'about'
        ) . ']">this is not a broken link</a>';
        $obj->syncLinkTracking();
@ -62,8 +61,8 @@ class SiteTreeBrokenLinksTest extends SapphireTest
     */
    public function testBrokenLinksNonPage()
    {
-        /** @var Page $aboutPage */
-        $aboutPage = $this->objFromFixture('Page', 'about');
+        /** @var SiteTree $aboutPage */
+        $aboutPage = $this->objFromFixture(SiteTree::class, 'about');

        /** @var NotPageObject $obj */
        $obj = $this->objFromFixture(NotPageObject::class, 'object1');
@ -94,7 +93,7 @@ class SiteTreeBrokenLinksTest extends SapphireTest
        // About-page backlinks contains this object
        $this->assertListEquals(
            [
-                ['ID' => $obj->ID]
+                ['ID' => $obj->ID],
            ],
            $aboutPage->BackLinkTracking()
        );
@ -102,9 +101,9 @@ class SiteTreeBrokenLinksTest extends SapphireTest

    public function testBrokenAnchorBetweenPages()
    {
-        /** @var Page $obj */
-        $obj = $this->objFromFixture('Page', 'content');
-        $target = $this->objFromFixture('Page', 'about');
+        /** @var SiteTree $obj */
+        $obj = $this->objFromFixture(SiteTree::class, 'content');
+        $target = $this->objFromFixture(SiteTree::class, 'about');

        $obj->Content = "<a href=\"[sitetree_link,id={$target->ID}]#no-anchor-here\">this is a broken link</a>";
        $obj->syncLinkTracking();
@ -117,7 +116,7 @@ class SiteTreeBrokenLinksTest extends SapphireTest

    public function testBrokenVirtualPages()
    {
-        $obj = $this->objFromFixture('Page', 'content');
+        $obj = $this->objFromFixture(SiteTree::class, 'content');
        $vp = new VirtualPage();

        $vp->CopyContentFromID = $obj->ID;
@ -131,7 +130,7 @@ class SiteTreeBrokenLinksTest extends SapphireTest

    public function testBrokenInternalRedirectorPages()
    {
-        $obj = $this->objFromFixture('Page', 'content');
+        $obj = $this->objFromFixture(SiteTree::class, 'content');
        $rp = new RedirectorPage();

        $rp->RedirectionType = 'Internal';
@ -148,10 +147,10 @@ class SiteTreeBrokenLinksTest extends SapphireTest
    public function testDeletingMarksBackLinkedPagesAsBroken()
    {
        // Set up two published pages with a link from content -> about
-        $linkDest = $this->objFromFixture('Page', 'about');
+        $linkDest = $this->objFromFixture(SiteTree::class, 'about');

-        /** @var Page $linkSrc */
-        $linkSrc = $this->objFromFixture('Page', 'content');
+        /** @var SiteTree $linkSrc */
+        $linkSrc = $this->objFromFixture(SiteTree::class, 'content');
        $linkSrc->Content = "<p><a href=\"[sitetree_link,id=$linkDest->ID]\">about us</a></p>";
        $linkSrc->write();

@ -163,7 +162,7 @@ class SiteTreeBrokenLinksTest extends SapphireTest

        // Confirm draft has broken link
        $linkSrc->flushCache();
-        $linkSrc = $this->objFromFixture('Page', 'content');
+        $linkSrc = $this->objFromFixture(SiteTree::class, 'content');

        $this->assertEquals(1, (int)$linkSrc->HasBrokenLink);
    }
@ -173,13 +172,13 @@ class SiteTreeBrokenLinksTest extends SapphireTest
        $this->logInWithPermission('ADMIN');

        // Set up two draft pages with a link from content -> about
-        /** @var Page $linkDest */
-        $linkDest = $this->objFromFixture('Page', 'about');
+        /** @var SiteTree $linkDest */
+        $linkDest = $this->objFromFixture(SiteTree::class, 'about');
        // Ensure that it's not on the published site
        $linkDest->doUnpublish();

-        /** @var Page $linkSrc */
-        $linkSrc = $this->objFromFixture('Page', 'content');
+        /** @var SiteTree $linkSrc */
+        $linkSrc = $this->objFromFixture(SiteTree::class, 'content');
        $linkSrc->Content = "<p><a href=\"[sitetree_link,id=$linkDest->ID]\">about us</a></p>";
        $linkSrc->write();

@ -191,20 +190,20 @@ class SiteTreeBrokenLinksTest extends SapphireTest

        // Live doesn't have separate broken link tracking
        $this->assertEquals(0, DB::query("SELECT \"HasBrokenLink\" FROM \"SiteTree_Live\"
-			WHERE \"ID\" = $linkSrc->ID")->value());
+            WHERE \"ID\" = $linkSrc->ID")->value());
    }

    public function testRestoreFixesBrokenLinks()
    {
        // Create page and virtual page
-        $p = new Page();
+        $p = new SiteTree();
        $p->Title = "source";
        $p->write();
        $pageID = $p->ID;
        $this->assertTrue($p->publishRecursive());

        // Content links are one kind of link to pages
-        $p2 = new Page();
+        $p2 = new SiteTree();
        $p2->Title = "regular link";
        $p2->Content = "<a href=\"[sitetree_link,id=$p->ID]\">test</a>";
        $p2->write();
@ -264,14 +263,14 @@ class SiteTreeBrokenLinksTest extends SapphireTest
    public function testRevertToLiveFixesBrokenLinks()
    {
        // Create page and virutal page
-        $page = new Page();
+        $page = new SiteTree();
        $page->Title = "source";
        $page->write();
        $pageID = $page->ID;
        $this->assertTrue($page->publishRecursive());

        // Content links are one kind of link to pages
-        $page2 = new Page();
+        $page2 = new SiteTree();
        $page2->Title = "regular link";
        $page2->Content = "<a href=\"[sitetree_link,id={$pageID}]\">test</a>";
        $page2->write();
@ -302,7 +301,7 @@ class SiteTreeBrokenLinksTest extends SapphireTest
        $this->assertEquals(1, $redirectorPage->HasBrokenLink);

        // Call doRevertToLive and confirm that broken links are restored
-        /** @var Page $pageLive */
+        /** @var SiteTree $pageLive */
        $pageLive = Versioned::get_one_by_stage(SiteTree::class, 'Live', '"SiteTree"."ID" = ' . $pageID);
        $pageLive->doRevertToLive();

@ -316,15 +315,17 @@ class SiteTreeBrokenLinksTest extends SapphireTest

    public function testBrokenAnchorLinksInAPage()
    {
-        /** @var Page $obj */
-        $obj = $this->objFromFixture('Page', 'content');
+        /** @var SiteTree $obj */
+        $obj = $this->objFromFixture(SiteTree::class, 'content');
        $origContent = $obj->Content;

-        $obj->Content = $origContent . '<a href="#no-anchor-here">this links to a non-existent in-page anchor or skiplink</a>';
+        $obj->Content = $origContent . '<a href="#no-anchor-here">this links to a non-existent in-page anchor or ' .
+            'skiplink</a>';
        $obj->syncLinkTracking();
        $this->assertTrue($obj->HasBrokenLink, 'Page has a broken anchor/skiplink');

-        $obj->Content = $origContent . '<a href="#yes-anchor-here">this links to an existent in-page anchor/skiplink</a>';
+        $obj->Content = $origContent . '<a href="#yes-anchor-here">this links to an existent in-page ' .
+            'anchor/skiplink</a>';
        $obj->syncLinkTracking();
        $this->assertFalse($obj->HasBrokenLink, 'Page doesn\'t have a broken anchor or skiplink');
    }
--- a/tests/php/Model/SiteTreeBrokenLinksTest.yml
+++ b/tests/php/Model/SiteTreeBrokenLinksTest.yml
@ -1,4 +1,4 @@
-Page:
+SilverStripe\CMS\Model\SiteTree:
  content:
    Title: ContentPage
    Content: 'This is some partially happy content. It has one missing a skiplink, but does have another <a name="yes-anchor-here">skiplink here</a>.'
@ -13,7 +13,7 @@ Page:
  workingInternalRedirector:
    RedirectionType: Internal
    Title: RedirectorPageToBrokenInteralPage
-    LinkTo: =>Page.content
+    LinkTo: =>SilverStripe\CMS\Model\SiteTree.content
 SilverStripe\CMS\Tests\Model\SiteTreeBrokenLinksTest\NotPageObject:
  object1:
    Content: 'Everything will be ok'
--- a/tests/php/Model/SiteTreeHTMLEditorFieldTest.php
+++ b/tests/php/Model/SiteTreeHTMLEditorFieldTest.php
@ -2,7 +2,6 @@

 namespace SilverStripe\CMS\Tests\Model;

-use Page;
 use SilverStripe\Assets\Dev\TestAssetStore;
 use SilverStripe\Assets\File;
 use SilverStripe\Assets\Filesystem;
@ -31,8 +30,8 @@ class SiteTreeHTMLEditorFieldTest extends FunctionalTest
        }

        // Ensure all pages are published
-        /** @var Page $page */
-        foreach (Page::get() as $page) {
+        /** @var SiteTree $page */
+        foreach (SiteTree::get() as $page) {
            $page->publishSingle();
        }
    }
@ -55,7 +54,11 @@ class SiteTreeHTMLEditorFieldTest extends FunctionalTest
        $editor->setValue("<a href=\"[sitetree_link,id=$aboutID]\">Example Link</a>");
        $editor->saveInto($sitetree);
        $sitetree->write();
-        $this->assertEquals([$aboutID => $aboutID], $sitetree->LinkTracking()->getIdList(), 'Basic link tracking works.');
+        $this->assertEquals(
+            [$aboutID => $aboutID],
+            $sitetree->LinkTracking()->getIdList(),
+            'Basic link tracking works.'
+        );

        $editor->setValue(
            "<a href=\"[sitetree_link,id=$aboutID]\"></a><a href=\"[sitetree_link,id=$contactID]\"></a>"
--- a/tests/php/Model/SiteTreeLinkTrackingTest.php
+++ b/tests/php/Model/SiteTreeLinkTrackingTest.php
@ -2,7 +2,6 @@

 namespace SilverStripe\CMS\Tests\Model;

-use Page;
 use SilverStripe\CMS\Model\SiteTree;
 use SilverStripe\CMS\Model\SiteTreeLinkTracking_Parser;
 use SilverStripe\Control\Director;
@ -32,7 +31,7 @@ class SiteTreeLinkTrackingTest extends SapphireTest

    public function testParser()
    {
-        SiteTree::add_extension(Page::class, SiteTreeLinkTracking_Extension::class);
+        SiteTree::add_extension(SiteTree::class, SiteTreeLinkTracking_Extension::class);

        // Shortcodes
        $this->assertTrue($this->isBroken('<a href="[sitetree_link,id=123]">link</a>'));
@ -55,8 +54,7 @@ class SiteTreeLinkTrackingTest extends SapphireTest
        $this->assertFalse($this->isBroken('<a id="anchor">anchor</a>'));
        $this->assertTrue($this->isBroken('<a href="##anchor">anchor</a>'));

-
-        $page = new Page();
+        $page = new SiteTree();
        $page->Content = '<a name="yes-name-anchor">name</a><a id="yes-id-anchor">id</a>';
        $page->write();

@ -72,7 +70,7 @@ class SiteTreeLinkTrackingTest extends SapphireTest

    protected function highlight($content)
    {
-        $page = new Page();
+        $page = new SiteTree();
        $page->Content = $content;
        $page->write();
        return $page->Content;
@ -87,7 +85,7 @@ class SiteTreeLinkTrackingTest extends SapphireTest
        $content = $this->highlight('<a href="[sitetree_link,id=123]">link</a>');
        $this->assertEquals(substr_count($content ?? '', 'ss-broken'), 1, 'ss-broken class is added to the broken link.');

-        $otherPage = new Page();
+        $otherPage = new SiteTree();
        $otherPage->Content = '';
        $otherPage->write();

--- a/tests/php/Model/SiteTreePermissionsTest.php
+++ b/tests/php/Model/SiteTreePermissionsTest.php
@ -2,7 +2,6 @@

 namespace SilverStripe\CMS\Tests\Model;

-use Page;
 use SilverStripe\CMS\Model\SiteTree;
 use SilverStripe\Control\HTTPResponse_Exception;
 use SilverStripe\Dev\FunctionalTest;
@ -33,8 +32,8 @@ class SiteTreePermissionsTest extends FunctionalTest
        $this->autoFollowRedirection = false;

        // Ensure all pages are published
-        /** @var Page $page */
-        foreach (Page::get() as $page) {
+        /** @var SiteTree $page */
+        foreach (SiteTree::get() as $page) {
            if ($page->URLSegment !== 'draft-only') {
                $page->publishSingle();
            }
@ -46,8 +45,8 @@ class SiteTreePermissionsTest extends FunctionalTest
    {
        $this->autoFollowRedirection = false;

-        /** @var Page $draftOnlyPage */
-        $draftOnlyPage = $this->objFromFixture(Page::class, 'draftOnlyPage');
+        /** @var SiteTree $draftOnlyPage */
+        $draftOnlyPage = $this->objFromFixture(SiteTree::class, 'draftOnlyPage');
        $this->logOut();

        $response = $this->get($draftOnlyPage->URLSegment . '?stage=Live');
@ -85,7 +84,7 @@ class SiteTreePermissionsTest extends FunctionalTest
    {
        // Set up fixture - a published page deleted from draft
        $this->logInWithPermission("ADMIN");
-        $page = $this->objFromFixture(Page::class, 'restrictedEditOnlySubadminGroup');
+        $page = $this->objFromFixture(SiteTree::class, 'restrictedEditOnlySubadminGroup');
        $pageID = $page->ID;
        $this->assertTrue($page->publishRecursive());
        $page->delete();
@ -112,7 +111,7 @@ class SiteTreePermissionsTest extends FunctionalTest
    {
        // Set up fixture - an unpublished page
        $this->logInWithPermission("ADMIN");
-        $page = $this->objFromFixture(Page::class, 'restrictedEditOnlySubadminGroup');
+        $page = $this->objFromFixture(SiteTree::class, 'restrictedEditOnlySubadminGroup');
        $pageID = $page->ID;
        $page->doUnpublish();

@ -135,7 +134,7 @@ class SiteTreePermissionsTest extends FunctionalTest
    {
        // Find a page that exists and delete it from both stage and published
        $this->logInWithPermission("ADMIN");
-        $page = $this->objFromFixture(Page::class, 'restrictedEditOnlySubadminGroup');
+        $page = $this->objFromFixture(SiteTree::class, 'restrictedEditOnlySubadminGroup');
        $pageID = $page->ID;
        $page->doUnpublish();
        $page->delete();
@ -153,8 +152,8 @@ class SiteTreePermissionsTest extends FunctionalTest
    public function testCanViewStage()
    {
        // Get page & make sure it exists on Live
-        /** @var Page $page */
-        $page = $this->objFromFixture(Page::class, 'standardpage');
+        /** @var SiteTree $page */
+        $page = $this->objFromFixture(SiteTree::class, 'standardpage');
        $page->publishSingle();

        // Then make sure there's a new version on Stage
@ -173,7 +172,7 @@ class SiteTreePermissionsTest extends FunctionalTest

    public function testAccessTabOnlyDisplaysWithGrantAccessPermissions()
    {
-        $page = $this->objFromFixture(Page::class, 'standardpage');
+        $page = $this->objFromFixture(SiteTree::class, 'standardpage');

        $subadminuser = $this->objFromFixture(Member::class, 'subadmin');
        Security::setCurrentUser($subadminuser);
@ -204,7 +203,7 @@ class SiteTreePermissionsTest extends FunctionalTest

    public function testRestrictedViewLoggedInUsers()
    {
-        $page = $this->objFromFixture(Page::class, 'restrictedViewLoggedInUsers');
+        $page = $this->objFromFixture(SiteTree::class, 'restrictedViewLoggedInUsers');

        // unauthenticated users
        $this->assertFalse(
@ -223,21 +222,23 @@ class SiteTreePermissionsTest extends FunctionalTest
        $websiteuser = $this->objFromFixture(Member::class, 'websiteuser');
        $this->assertTrue(
            $page->canView($websiteuser),
-            'Authenticated members can view a page marked as "Viewable for any logged in users" even if they dont have access to the CMS'
+            'Authenticated members can view a page marked as "Viewable for any logged in users" even if they dont ' .
+            'have access to the CMS'
        );
        $this->logInAs($websiteuser);
        $response = $this->get($page->RelativeLink());
        $this->assertEquals(
            $response->getStatusCode(),
            200,
-            'Authenticated members can view a page marked as "Viewable for any logged in users" even if they dont have access to the CMS'
+            'Authenticated members can view a page marked as "Viewable for any logged in users" even if they dont ' .
+            'have access to the CMS'
        );
        $this->logOut();
    }

    public function testRestrictedViewOnlyTheseUsers()
    {
-        $page = $this->objFromFixture(Page::class, 'restrictedViewOnlyWebsiteUsers');
+        $page = $this->objFromFixture(SiteTree::class, 'restrictedViewOnlyWebsiteUsers');

        // unauthenticcated users
        $this->assertFalse(
@ -256,14 +257,16 @@ class SiteTreePermissionsTest extends FunctionalTest
        $subadminuser = $this->objFromFixture(Member::class, 'subadmin');
        $this->assertFalse(
            $page->canView($subadminuser),
-            'Authenticated members cant view a page marked as "Viewable by these groups" if theyre not in the listed groups'
+            'Authenticated members cant view a page marked as "Viewable by these groups" if theyre not in the listed ' .
+            'groups'
        );
        $this->LogInAs($subadminuser);
        $response = $this->get($page->RelativeLink());
        $this->assertEquals(
            $response->getStatusCode(),
            403,
-            'Authenticated members cant view a page marked as "Viewable by these groups" if theyre not in the listed groups'
+            'Authenticated members cant view a page marked as "Viewable by these groups" if theyre not in the listed ' .
+            'groups'
        );
        $this->logOut();

@ -285,7 +288,7 @@ class SiteTreePermissionsTest extends FunctionalTest

    public function testRestrictedEditLoggedInUsers()
    {
-        $page = $this->objFromFixture(Page::class, 'restrictedEditLoggedInUsers');
+        $page = $this->objFromFixture(SiteTree::class, 'restrictedEditLoggedInUsers');

        // unauthenticcated users
        $this->assertFalse(
@ -298,20 +301,22 @@ class SiteTreePermissionsTest extends FunctionalTest
        Security::setCurrentUser($websiteuser);
        $this->assertFalse(
            $page->canEdit($websiteuser),
-            'Authenticated members cant edit a page marked as "Editable by logged in users" if they dont have cms permissions'
+            'Authenticated members cant edit a page marked as "Editable by logged in users" if they dont have cms ' .
+            'permissions'
        );

        // subadmin users
        $subadminuser = $this->objFromFixture(Member::class, 'subadmin');
        $this->assertTrue(
            $page->canEdit($subadminuser),
-            'Authenticated members can edit a page marked as "Editable by logged in users" if they have cms permissions and belong to any of these groups'
+            'Authenticated members can edit a page marked as "Editable by logged in users" if they have cms ' .
+            'permissions and belong to any of these groups'
        );
    }

    public function testRestrictedEditOnlySubadminGroup()
    {
-        $page = $this->objFromFixture(Page::class, 'restrictedEditOnlySubadminGroup');
+        $page = $this->objFromFixture(SiteTree::class, 'restrictedEditOnlySubadminGroup');

        // unauthenticated users
        $this->assertFalse(
@ -330,14 +335,15 @@ class SiteTreePermissionsTest extends FunctionalTest
        $websiteuser = $this->objFromFixture(Member::class, 'websiteuser');
        $this->assertFalse(
            $page->canEdit($websiteuser),
-            'Authenticated members cant edit a page marked as "Editable by these groups" if theyre not in the listed groups'
+            'Authenticated members cant edit a page marked as "Editable by these groups" if theyre not in the listed ' .
+            'groups'
        );
    }

    public function testRestrictedViewInheritance()
    {
-        $parentPage = $this->objFromFixture(Page::class, 'parent_restrictedViewOnlySubadminGroup');
-        $childPage = $this->objFromFixture(Page::class, 'child_restrictedViewOnlySubadminGroup');
+        $parentPage = $this->objFromFixture(SiteTree::class, 'parent_restrictedViewOnlySubadminGroup');
+        $childPage = $this->objFromFixture(SiteTree::class, 'child_restrictedViewOnlySubadminGroup');

        // unauthenticated users
        $this->assertFalse(
@ -356,22 +362,24 @@ class SiteTreePermissionsTest extends FunctionalTest
        $subadminuser = $this->objFromFixture(Member::class, 'subadmin');
        $this->assertTrue(
            $childPage->canView($subadminuser),
-            'Authenticated members can view a page marked as "Viewable by these groups" if theyre in the listed groups by inherited permission'
+            'Authenticated members can view a page marked as "Viewable by these groups" if theyre in the listed ' .
+            'groups by inherited permission'
        );
        $this->logInAs($subadminuser);
        $response = $this->get($childPage->RelativeLink());
        $this->assertEquals(
            $response->getStatusCode(),
            200,
-            'Authenticated members can view a page marked as "Viewable by these groups" if theyre in the listed groups by inherited permission'
+            'Authenticated members can view a page marked as "Viewable by these groups" if theyre in the listed ' .
+            'groups by inherited permission'
        );
        $this->logOut();
    }

    public function testRestrictedEditInheritance()
    {
-        $parentPage = $this->objFromFixture(Page::class, 'parent_restrictedEditOnlySubadminGroup');
-        $childPage = $this->objFromFixture(Page::class, 'child_restrictedEditOnlySubadminGroup');
+        $parentPage = $this->objFromFixture(SiteTree::class, 'parent_restrictedEditOnlySubadminGroup');
+        $childPage = $this->objFromFixture(SiteTree::class, 'child_restrictedEditOnlySubadminGroup');

        // unauthenticated users
        $this->assertFalse(
@ -383,14 +391,15 @@ class SiteTreePermissionsTest extends FunctionalTest
        $subadminuser = $this->objFromFixture(Member::class, 'subadmin');
        $this->assertTrue(
            $childPage->canEdit($subadminuser),
-            'Authenticated members can edit a page marked as "Editable by these groups" if theyre in the listed groups by inherited permission'
+            'Authenticated members can edit a page marked as "Editable by these groups" if theyre in the listed ' .
+            'groups by inherited permission'
        );
    }

    public function testDeleteRestrictedChild()
    {
-        $parentPage = $this->objFromFixture(Page::class, 'deleteTestParentPage');
-        $childPage = $this->objFromFixture(Page::class, 'deleteTestChildPage');
+        $parentPage = $this->objFromFixture(SiteTree::class, 'deleteTestParentPage');
+        $childPage = $this->objFromFixture(SiteTree::class, 'deleteTestChildPage');

        // unauthenticated users
        $this->assertFalse(
@ -405,7 +414,7 @@ class SiteTreePermissionsTest extends FunctionalTest

    public function testRestrictedEditLoggedInUsersDeletedFromStage()
    {
-        $page = $this->objFromFixture(Page::class, 'restrictedEditLoggedInUsers');
+        $page = $this->objFromFixture(SiteTree::class, 'restrictedEditLoggedInUsers');
        $pageID = $page->ID;

        $this->logInWithPermission("ADMIN");
@ -421,39 +430,60 @@ class SiteTreePermissionsTest extends FunctionalTest
        $subadminuser = $this->objFromFixture(Member::class, 'subadmin');
        $this->assertTrue(
            $page->canEdit($subadminuser),
-            'Authenticated members can edit a page that was deleted from stage and marked as "Editable by logged in users" if they have cms permissions and belong to any of these groups'
+            'Authenticated members can edit a page that was deleted from stage and marked as "Editable by logged ' .
+            'in users" if they have cms permissions and belong to any of these groups'
        );
    }

    public function testInheritCanViewFromSiteConfig()
    {
-        $page = $this->objFromFixture(Page::class, 'inheritWithNoParent');
+        $page = $this->objFromFixture(SiteTree::class, 'inheritWithNoParent');
        $siteconfig = $this->objFromFixture(SiteConfig::class, 'default');
        $editor = $this->objFromFixture(Member::class, 'editor');
        $editorGroup = $this->objFromFixture(Group::class, 'editorgroup');

        $siteconfig->CanViewType = 'Anyone';
        $siteconfig->write();
-        $this->assertTrue($page->canView(false), 'Anyone can view a page when set to inherit from the SiteConfig, and SiteConfig has canView set to LoggedInUsers');
+        $this->assertTrue(
+            $page->canView(false),
+            'Anyone can view a page when set to inherit from the SiteConfig, and SiteConfig has canView set to ' .
+            'LoggedInUsers'
+        );

        $siteconfig->CanViewType = 'LoggedInUsers';
        $siteconfig->write();
-        $this->assertFalse($page->canView(false), 'Anonymous can\'t view a page when set to inherit from the SiteConfig, and SiteConfig has canView set to LoggedInUsers');
+        $this->assertFalse(
+            $page->canView(false),
+            'Anonymous can\'t view a page when set to inherit from the SiteConfig, and SiteConfig has canView set to ' .
+            'LoggedInUsers'
+        );

        $siteconfig->CanViewType = 'LoggedInUsers';
        $siteconfig->write();
-        $this->assertTrue($page->canView($editor), 'Users can view a page when set to inherit from the SiteConfig, and SiteConfig has canView set to LoggedInUsers');
+        $this->assertTrue(
+            $page->canView($editor),
+            'Users can view a page when set to inherit from the SiteConfig, and SiteConfig has canView set to ' .
+            'LoggedInUsers'
+        );

        $siteconfig->CanViewType = 'OnlyTheseUsers';
        $siteconfig->ViewerGroups()->add($editorGroup);
        $siteconfig->write();
-        $this->assertTrue($page->canView($editor), 'Editors can view a page when set to inherit from the SiteConfig, and SiteConfig has canView set to OnlyTheseUsers');
-        $this->assertFalse($page->canView(false), 'Anonymous can\'t view a page when set to inherit from the SiteConfig, and SiteConfig has canView set to OnlyTheseUsers');
+        $this->assertTrue(
+            $page->canView($editor),
+            'Editors can view a page when set to inherit from the SiteConfig, and SiteConfig has canView set to ' .
+            'OnlyTheseUsers'
+        );
+        $this->assertFalse(
+            $page->canView(false),
+            'Anonymous can\'t view a page when set to inherit from the SiteConfig, and SiteConfig has canView set ' .
+            'to OnlyTheseUsers'
+        );
    }

    public function testInheritCanEditFromSiteConfig()
    {
-        $page = $this->objFromFixture(Page::class, 'inheritWithNoParent');
+        $page = $this->objFromFixture(SiteTree::class, 'inheritWithNoParent');
        $siteconfig = $this->objFromFixture(SiteConfig::class, 'default');
        $editor = $this->objFromFixture(Member::class, 'editor');
        $user = $this->objFromFixture(Member::class, 'websiteuser');
@ -462,17 +492,37 @@ class SiteTreePermissionsTest extends FunctionalTest
        $siteconfig->CanEditType = 'LoggedInUsers';
        $siteconfig->write();

-        $this->assertFalse($page->canEdit(false), 'Anonymous can\'t edit a page when set to inherit from the SiteConfig, and SiteConfig has canEdit set to LoggedInUsers');
+        $this->assertFalse(
+            $page->canEdit(false),
+            'Anonymous can\'t edit a page when set to inherit from the SiteConfig, and SiteConfig has canEdit set ' .
+            'to LoggedInUsers'
+        );
        Security::setCurrentUser($editor);
-        $this->assertTrue($page->canEdit(), 'Users can edit a page when set to inherit from the SiteConfig, and SiteConfig has canEdit set to LoggedInUsers');
+        $this->assertTrue(
+            $page->canEdit(),
+            'Users can edit a page when set to inherit from the SiteConfig, and SiteConfig has canEdit set to ' .
+            'LoggedInUsers'
+        );

        $siteconfig->CanEditType = 'OnlyTheseUsers';
        $siteconfig->EditorGroups()->add($editorGroup);
        $siteconfig->write();
-        $this->assertTrue($page->canEdit($editor), 'Editors can edit a page when set to inherit from the SiteConfig, and SiteConfig has canEdit set to OnlyTheseUsers');
+        $this->assertTrue(
+            $page->canEdit($editor),
+            'Editors can edit a page when set to inherit from the SiteConfig, and SiteConfig has canEdit set to ' .
+            'OnlyTheseUsers'
+        );
        Security::setCurrentUser(null);
-        $this->assertFalse($page->canEdit(false), 'Anonymous can\'t edit a page when set to inherit from the SiteConfig, and SiteConfig has canEdit set to OnlyTheseUsers');
+        $this->assertFalse(
+            $page->canEdit(false),
+            'Anonymous can\'t edit a page when set to inherit from the SiteConfig, and SiteConfig has canEdit set ' .
+            'to OnlyTheseUsers'
+        );
        Security::setCurrentUser($user);
-        $this->assertFalse($page->canEdit($user), 'Website user can\'t edit a page when set to inherit from the SiteConfig, and SiteConfig has canEdit set to OnlyTheseUsers');
+        $this->assertFalse(
+            $page->canEdit($user),
+            'Website user can\'t edit a page when set to inherit from the SiteConfig, and SiteConfig has canEdit set ' .
+            'to OnlyTheseUsers'
+        );
    }
 }
--- a/tests/php/Model/SiteTreePermissionsTest.yml
+++ b/tests/php/Model/SiteTreePermissionsTest.yml
@ -35,7 +35,7 @@ SilverStripe\Security\Member:
    Email: websiteuser@test.com
    Password: test
    Groups: =>SilverStripe\Security\Group.websiteusers
-Page:
+SilverStripe\CMS\Model\SiteTree:
  standardpage:
    URLSegment: standardpage
  restrictedViewLoggedInUsers:
@ -66,7 +66,7 @@ Page:
    URLSegment: parent-restrictedViewOnlySubadminGroup
  child_restrictedViewOnlySubadminGroup:
    CanViewType: Inherit
-    Parent: =>Page.parent_restrictedViewOnlySubadminGroup
+    Parent: =>SilverStripe\CMS\Model\SiteTree.parent_restrictedViewOnlySubadminGroup
    URLSegment: child-restrictedViewOnlySubadminGroup
  parent_restrictedEditOnlySubadminGroup:
    CanEditType: OnlyTheseUsers
@ -74,7 +74,7 @@ Page:
    URLSegment: parent-restrictedEditOnlySubadminGroup
  child_restrictedEditOnlySubadminGroup:
    CanEditType: Inherit
-    Parent: =>Page.parent_restrictedEditOnlySubadminGroup
+    Parent: =>SilverStripe\CMS\Model\SiteTree.parent_restrictedEditOnlySubadminGroup
    URLSegment: child-restrictedEditOnlySubadminGroup
  deleteTestParentPage:
    CanEditType: Inherit
--- a/tests/php/Model/SiteTreeTest.php
+++ b/tests/php/Model/SiteTreeTest.php
@ -3,7 +3,6 @@
 namespace SilverStripe\CMS\Tests\Model;

 use LogicException;
-use Page;
 use Psr\SimpleCache\CacheInterface;
 use ReflectionMethod;
 use SilverStripe\CMS\Model\RedirectorPage;
@ -34,16 +33,15 @@ use SilverStripe\Security\Security;
 use SilverStripe\SiteConfig\SiteConfig;
 use SilverStripe\Subsites\Extensions\SiteTreeSubsites;
 use SilverStripe\Versioned\Versioned;
-use SilverStripe\View\Parsers\Diff;
+use SilverStripe\View\Parsers\HtmlDiff;
 use SilverStripe\View\Parsers\ShortcodeParser;
 use SilverStripe\View\Parsers\URLSegmentFilter;
 use SilverStripe\View\Shortcodes\EmbedShortcodeProvider;
 use TractorCow\Fluent\Extension\FluentSiteTreeExtension;
+use Page;
+use PageController;
+
 use const RESOURCES_DIR;
-use SilverStripe\Dev\Deprecation;
-use SilverStripe\HTML5\HTML5Value;
-use SilverStripe\View\Parsers\HTMLValue;
-use SilverStripe\View\Parsers\HTML4Value;

 class SiteTreeTest extends SapphireTest
 {
@ -88,28 +86,28 @@ class SiteTreeTest extends SapphireTest

    public function testCreateDefaultpages()
    {
-            $remove = SiteTree::get();
+        $remove = SiteTree::get();
        if ($remove) {
            foreach ($remove as $page) {
                $page->delete();
            }
        }
-            // Make sure the table is empty
-            $this->assertEquals(DB::query('SELECT COUNT("ID") FROM "SiteTree"')->value(), 0);
+        // Make sure the table is empty
+        $this->assertEquals(DB::query('SELECT COUNT("ID") FROM "SiteTree"')->value(), 0);

-            // Disable the creation
-            SiteTree::config()->create_default_pages = false;
-            singleton(SiteTree::class)->requireDefaultRecords();
+        // Disable the creation
+        SiteTree::config()->create_default_pages = false;
+        singleton(SiteTree::class)->requireDefaultRecords();

-            // The table should still be empty
-            $this->assertEquals(DB::query('SELECT COUNT("ID") FROM "SiteTree"')->value(), 0);
+        // The table should still be empty
+        $this->assertEquals(DB::query('SELECT COUNT("ID") FROM "SiteTree"')->value(), 0);

-            // Enable the creation
-            SiteTree::config()->create_default_pages = true;
-            singleton(SiteTree::class)->requireDefaultRecords();
+        // Enable the creation
+        SiteTree::config()->create_default_pages = true;
+        singleton(SiteTree::class)->requireDefaultRecords();

-            // The table should now have three rows (home, about-us, contact-us)
-            $this->assertEquals(DB::query('SELECT COUNT("ID") FROM "SiteTree"')->value(), 3);
+        // The table should now have three rows (home, about-us, contact-us)
+        $this->assertEquals(DB::query('SELECT COUNT("ID") FROM "SiteTree"')->value(), 3);
    }

    /**
@ -136,7 +134,7 @@ class SiteTreeTest extends SapphireTest
        ];

        foreach ($expectedURLs as $fixture => $urlSegment) {
-            $obj = $this->objFromFixture('Page', $fixture);
+            $obj = $this->objFromFixture(SiteTree::class, $fixture);
            $this->assertEquals($urlSegment, $obj->URLSegment);
        }
    }
@ -147,9 +145,9 @@ class SiteTreeTest extends SapphireTest
     */
    public function testDisallowedURLGeneration($title, $urlSegment)
    {
-        $page = Page::create(['Title' => $title]);
+        $page = new SiteTree(['Title' => $title]);
        $id = $page->write();
-        $page = Page::get()->byID($id);
+        $page = SiteTree::get()->byID($id);
        $this->assertEquals($urlSegment, $page->URLSegment);
    }

@ -162,9 +160,9 @@ class SiteTreeTest extends SapphireTest
    {
        // Using the same dataprovider, strip out the -2 from the admin and dev segment
        $urlSegment = str_replace('-2', '', $urlSegment ?? '');
-        $page = Page::create(['Title' => $title, 'ParentID' => 1]);
+        $page = new SiteTree(['Title' => $title, 'ParentID' => 1]);
        $id = $page->write();
-        $page = Page::get()->byID($id);
+        $page = SiteTree::get()->byID($id);
        $this->assertEquals($urlSegment, $page->URLSegment);
    }

@ -179,7 +177,7 @@ class SiteTreeTest extends SapphireTest
            $this->markTestSkipped('This legacy test requires RESOURCES_DIR to be "resources"');
        }

-        $page = SiteTree::create(['Title' => 'Resources']);
+        $page = new SiteTree(['Title' => 'Resources']);
        $id = $page->write();
        $page = SiteTree::get()->byID($id);
        $this->assertSame('resources-2', $page->URLSegment);
@ -197,7 +195,7 @@ class SiteTreeTest extends SapphireTest
            $this->markTestSkipped('This test requires RESOURCES_DIR to be something other than "resources"');
        }

-        $page = SiteTree::create(['Title' => '_Resources']);
+        $page = new SiteTree(['Title' => '_Resources']);
        $id = $page->write();
        $page = SiteTree::get()->byID($id);
        $this->assertSame('resources', $page->URLSegment);
@ -208,10 +206,12 @@ class SiteTreeTest extends SapphireTest
     */
    public function testPublishCopiesToLiveTable()
    {
-        $obj = $this->objFromFixture('Page', 'about');
+        $obj = $this->objFromFixture(SiteTree::class, 'about');
        $obj->copyVersionToStage(Versioned::DRAFT, Versioned::LIVE);

-        $createdID = DB::query("SELECT \"ID\" FROM \"SiteTree_Live\" WHERE \"URLSegment\" = '$obj->URLSegment'")->value();
+        $createdID = DB::query(
+            "SELECT \"ID\" FROM \"SiteTree_Live\" WHERE \"URLSegment\" = '$obj->URLSegment'"
+        )->value();
        $this->assertEquals($obj->ID, $createdID);
    }

@ -222,12 +222,15 @@ class SiteTreeTest extends SapphireTest
    {
        $this->logInWithPermission('ADMIN');

-        $obj = $this->objFromFixture('Page', 'about');
+        $obj = $this->objFromFixture(SiteTree::class, 'about');
        $obj->Title = "asdfasdf";
        $obj->write();
        $this->assertTrue($obj->publishRecursive());

-        $this->assertEquals('asdfasdf', DB::query("SELECT \"Title\" FROM \"SiteTree_Live\" WHERE \"ID\" = '$obj->ID'")->value());
+        $this->assertEquals(
+            'asdfasdf',
+            DB::query("SELECT \"Title\" FROM \"SiteTree_Live\" WHERE \"ID\" = '$obj->ID'")->value()
+        );

        $obj->Title = null;
        $obj->write();
@ -274,7 +277,7 @@ class SiteTreeTest extends SapphireTest
        Versioned::set_stage(Versioned::LIVE);

        $checkSiteTree = DataObject::get_one(SiteTree::class, [
-            '"SiteTree"."URLSegment"' => 'get-one-test-page'
+            '"SiteTree"."URLSegment"' => 'get-one-test-page',
        ]);
        $this->assertEquals("V1", $checkSiteTree->Title);

@ -313,10 +316,13 @@ class SiteTreeTest extends SapphireTest
    {
        /* DataObject::write() should save to a has_one relationship if you set a field called (relname)ID */
        $page = new SiteTree();
-        $parentID = $this->idFromFixture('Page', 'home');
+        $parentID = $this->idFromFixture(SiteTree::class, 'home');
        $page->ParentID = $parentID;
        $page->write();
-        $this->assertEquals($parentID, DB::query("SELECT \"ParentID\" FROM \"SiteTree\" WHERE \"ID\" = $page->ID")->value());
+        $this->assertEquals(
+            $parentID,
+            DB::query("SELECT \"ParentID\" FROM \"SiteTree\" WHERE \"ID\" = $page->ID")->value()
+        );

        /* You should then be able to save a null/0/'' value to the relation */
        $page->ParentID = null;
@ -400,23 +406,23 @@ class SiteTreeTest extends SapphireTest
     */
    public function testRestoreToStage()
    {
-        $page = $this->objFromFixture('Page', 'about');
+        $page = $this->objFromFixture(SiteTree::class, 'about');
        $pageID = $page->ID;
        $page->delete();
-        $this->assertTrue(!DataObject::get_by_id("Page", $pageID));
+        $this->assertTrue(!DataObject::get_by_id(SiteTree::class, $pageID));

        $deletedPage = Versioned::get_latest_version(SiteTree::class, $pageID);
        $resultPage = $deletedPage->doRestoreToStage();

-        $requeriedPage = DataObject::get_by_id("Page", $pageID);
+        $requeriedPage = DataObject::get_by_id(SiteTree::class, $pageID);

        $this->assertEquals($pageID, $resultPage->ID);
        $this->assertEquals($pageID, $requeriedPage->ID);
        $this->assertEquals('About Us', $requeriedPage->Title);
-        $this->assertInstanceOf('Page', $requeriedPage);
+        $this->assertInstanceOf(SiteTree::class, $requeriedPage);


-        $page2 = $this->objFromFixture('Page', 'products');
+        $page2 = $this->objFromFixture(SiteTree::class, 'products');
        $page2ID = $page2->ID;
        $page2->doUnpublish();
        $page2->delete();
@ -426,12 +432,14 @@ class SiteTreeTest extends SapphireTest
        Versioned::set_stage(Versioned::LIVE);
        $deletedPage = Versioned::get_latest_version(SiteTree::class, $page2ID);
        $deletedPage->doRestoreToStage();
-        $this->assertFalse((bool)Versioned::get_one_by_stage(SiteTree::class, Versioned::LIVE, "\"SiteTree\".\"ID\" = " . $page2ID));
+        $this->assertFalse(
+            (bool)Versioned::get_one_by_stage(SiteTree::class, Versioned::LIVE, "\"SiteTree\".\"ID\" = " . $page2ID)
+        );

        Versioned::set_stage(Versioned::DRAFT);
-        $requeriedPage = DataObject::get_by_id("Page", $page2ID);
+        $requeriedPage = DataObject::get_by_id(SiteTree::class, $page2ID);
        $this->assertEquals('Products', $requeriedPage->Title);
-        $this->assertInstanceOf('Page', $requeriedPage);
+        $this->assertInstanceOf(SiteTree::class, $requeriedPage);
    }

    public function testNoCascadingDeleteWithoutID()
@ -455,10 +463,10 @@ class SiteTreeTest extends SapphireTest

    public function testGetByLink()
    {
-        $home     = $this->objFromFixture('Page', 'home');
-        $about    = $this->objFromFixture('Page', 'about');
-        $staff    = $this->objFromFixture('Page', 'staff');
-        $product  = $this->objFromFixture('Page', 'product1');
+        $home     = $this->objFromFixture(SiteTree::class, 'home');
+        $about    = $this->objFromFixture(SiteTree::class, 'about');
+        $staff    = $this->objFromFixture(SiteTree::class, 'staff');
+        $product  = $this->objFromFixture(SiteTree::class, 'product1');

        SiteTree::config()->nested_urls = false;

@ -485,10 +493,10 @@ class SiteTreeTest extends SapphireTest

    public function testGetByLinkAbsolute()
    {
-        $home     = $this->objFromFixture('Page', 'home');
-        $about    = $this->objFromFixture('Page', 'about');
-        $staff    = $this->objFromFixture('Page', 'staff');
-        $product  = $this->objFromFixture('Page', 'product1');
+        $home = $this->objFromFixture(SiteTree::class, 'home');
+        $about = $this->objFromFixture(SiteTree::class, 'about');
+        $staff = $this->objFromFixture(SiteTree::class, 'staff');
+        $product = $this->objFromFixture(SiteTree::class, 'product1');

        $base = 'https://example.test/';
        $this->assertEquals($home->ID, SiteTree::get_by_link(Controller::join_links($base, '/'), false)->ID);
@ -500,29 +508,45 @@ class SiteTreeTest extends SapphireTest

    public function testRelativeLink()
    {
-        $about    = $this->objFromFixture('Page', 'about');
-        $staff    = $this->objFromFixture('Page', 'staff');
+        $about = $this->objFromFixture(SiteTree::class, 'about');
+        $staff = $this->objFromFixture(SiteTree::class, 'staff');

        Config::modify()->set(SiteTree::class, 'nested_urls', true);

-        $this->assertEquals('about-us/', $about->RelativeLink(), 'Matches URLSegment on top level without parameters');
-        $this->assertEquals('about-us/my-staff/', $staff->RelativeLink(), 'Matches URLSegment plus parent on second level without parameters');
-        $this->assertEquals('about-us/edit', $about->RelativeLink('edit'), 'Matches URLSegment plus parameter on top level');
-        $this->assertEquals('about-us/tom&jerry', $about->RelativeLink('tom&jerry'), 'Doesnt url encode parameter');
+        $this->assertEquals(
+            'about-us',
+            $about->RelativeLink(),
+            'Matches URLSegment on top level without parameters'
+        );
+        $this->assertEquals(
+            'about-us/my-staff',
+            $staff->RelativeLink(),
+            'Matches URLSegment plus parent on second level without parameters'
+        );
+        $this->assertEquals(
+            'about-us/edit',
+            $about->RelativeLink('edit'),
+            'Matches URLSegment plus parameter on top level'
+        );
+        $this->assertEquals(
+            'about-us/tom&jerry',
+            $about->RelativeLink('tom&jerry'),
+            'Doesnt url encode parameter'
+        );
    }

    public function testPageLevel()
    {
-        $about = $this->objFromFixture('Page', 'about');
-        $staff = $this->objFromFixture('Page', 'staff');
+        $about = $this->objFromFixture(SiteTree::class, 'about');
+        $staff = $this->objFromFixture(SiteTree::class, 'staff');
        $this->assertEquals(1, $about->getPageLevel());
        $this->assertEquals(2, $staff->getPageLevel());
    }

    public function testAbsoluteLiveLink()
    {
-        $parent = $this->objFromFixture('Page', 'about');
-        $child = $this->objFromFixture('Page', 'staff');
+        $parent = $this->objFromFixture(SiteTree::class, 'about');
+        $child = $this->objFromFixture(SiteTree::class, 'staff');

        Config::modify()->set(SiteTree::class, 'nested_urls', true);

@ -533,23 +557,23 @@ class SiteTreeTest extends SapphireTest
        $parent->URLSegment = 'changed-on-draft';
        $parent->write();

-        $this->assertStringEndsWith('changed-on-live/my-staff/', $child->getAbsoluteLiveLink(false));
-        $this->assertStringEndsWith('changed-on-live/my-staff/?stage=Live', $child->getAbsoluteLiveLink());
+        $this->assertStringEndsWith('changed-on-live/my-staff', $child->getAbsoluteLiveLink(false));
+        $this->assertStringEndsWith('changed-on-live/my-staff?stage=Live', $child->getAbsoluteLiveLink());
    }

    public function testDuplicateChildrenRetainSort()
    {
-        $parent = new Page();
+        $parent = new SiteTree();
        $parent->Title = 'Parent';
        $parent->write();

-        $child1 = new Page();
+        $child1 = new SiteTree();
        $child1->ParentID = $parent->ID;
        $child1->Title = 'Child 1';
        $child1->Sort = 2;
        $child1->write();

-        $child2 = new Page();
+        $child2 = new SiteTree();
        $child2->ParentID = $parent->ID;
        $child2->Title = 'Child 2';
        $child2->Sort = 1;
@ -573,34 +597,34 @@ class SiteTreeTest extends SapphireTest
    public function testDeleteFromStageOperatesRecursively()
    {
        Config::modify()->set(SiteTree::class, 'enforce_strict_hierarchy', false);
-        $pageAbout = $this->objFromFixture('Page', 'about');
-        $pageStaff = $this->objFromFixture('Page', 'staff');
-        $pageStaffDuplicate = $this->objFromFixture('Page', 'staffduplicate');
+        $pageAbout = $this->objFromFixture(SiteTree::class, 'about');
+        $pageStaff = $this->objFromFixture(SiteTree::class, 'staff');
+        $pageStaffDuplicate = $this->objFromFixture(SiteTree::class, 'staffduplicate');

        $pageAbout->delete();

-        $this->assertNull(DataObject::get_by_id('Page', $pageAbout->ID));
-        $this->assertTrue(DataObject::get_by_id('Page', $pageStaff->ID) instanceof Page);
-        $this->assertTrue(DataObject::get_by_id('Page', $pageStaffDuplicate->ID) instanceof Page);
+        $this->assertNull(DataObject::get_by_id(SiteTree::class, $pageAbout->ID));
+        $this->assertTrue(DataObject::get_by_id(SiteTree::class, $pageStaff->ID) instanceof SiteTree);
+        $this->assertTrue(DataObject::get_by_id(SiteTree::class, $pageStaffDuplicate->ID) instanceof SiteTree);
        Config::modify()->set(SiteTree::class, 'enforce_strict_hierarchy', true);
    }

    public function testDeleteFromStageOperatesRecursivelyStrict()
    {
-        $pageAbout = $this->objFromFixture('Page', 'about');
-        $pageStaff = $this->objFromFixture('Page', 'staff');
-        $pageStaffDuplicate = $this->objFromFixture('Page', 'staffduplicate');
+        $pageAbout = $this->objFromFixture(SiteTree::class, 'about');
+        $pageStaff = $this->objFromFixture(SiteTree::class, 'staff');
+        $pageStaffDuplicate = $this->objFromFixture(SiteTree::class, 'staffduplicate');

        $pageAbout->delete();

-        $this->assertNull(DataObject::get_by_id('Page', $pageAbout->ID));
-        $this->assertNull(DataObject::get_by_id('Page', $pageStaff->ID));
-        $this->assertNull(DataObject::get_by_id('Page', $pageStaffDuplicate->ID));
+        $this->assertNull(DataObject::get_by_id(SiteTree::class, $pageAbout->ID));
+        $this->assertNull(DataObject::get_by_id(SiteTree::class, $pageStaff->ID));
+        $this->assertNull(DataObject::get_by_id(SiteTree::class, $pageStaffDuplicate->ID));
    }

    public function testDuplicate()
    {
-        $pageAbout = $this->objFromFixture('Page', 'about');
+        $pageAbout = $this->objFromFixture(SiteTree::class, 'about');
        $dupe = $pageAbout->duplicate();
        $this->assertEquals($pageAbout->Title, $dupe->Title);
        $this->assertNotEquals($pageAbout->URLSegment, $dupe->URLSegment);
@ -612,22 +636,22 @@ class SiteTreeTest extends SapphireTest
        Config::modify()->set(SiteTree::class, 'enforce_strict_hierarchy', false);
        $this->logInWithPermission('ADMIN');

-        $pageAbout = $this->objFromFixture('Page', 'about');
+        $pageAbout = $this->objFromFixture(SiteTree::class, 'about');
        $pageAbout->publishRecursive();
-        $pageStaff = $this->objFromFixture('Page', 'staff');
+        $pageStaff = $this->objFromFixture(SiteTree::class, 'staff');
        $pageStaff->publishRecursive();
-        $pageStaffDuplicate = $this->objFromFixture('Page', 'staffduplicate');
+        $pageStaffDuplicate = $this->objFromFixture(SiteTree::class, 'staffduplicate');
        $pageStaffDuplicate->publishRecursive();

-        $parentPage = $this->objFromFixture('Page', 'about');
+        $parentPage = $this->objFromFixture(SiteTree::class, 'about');

        $parentPage->doUnpublish();

        Versioned::set_stage(Versioned::LIVE);

-        $this->assertNull(DataObject::get_by_id('Page', $pageAbout->ID));
-        $this->assertTrue(DataObject::get_by_id('Page', $pageStaff->ID) instanceof Page);
-        $this->assertTrue(DataObject::get_by_id('Page', $pageStaffDuplicate->ID) instanceof Page);
+        $this->assertNull(DataObject::get_by_id(SiteTree::class, $pageAbout->ID));
+        $this->assertTrue(DataObject::get_by_id(SiteTree::class, $pageStaff->ID) instanceof SiteTree);
+        $this->assertTrue(DataObject::get_by_id(SiteTree::class, $pageStaffDuplicate->ID) instanceof SiteTree);
        Versioned::set_stage(Versioned::DRAFT);
        Config::modify()->set(SiteTree::class, 'enforce_strict_hierarchy', true);
    }
@ -637,20 +661,20 @@ class SiteTreeTest extends SapphireTest
        Config::modify()->set(SiteTree::class, 'enforce_strict_hierarchy', false);
        $this->logInWithPermission('ADMIN');

-        $pageAbout = $this->objFromFixture('Page', 'about');
+        $pageAbout = $this->objFromFixture(SiteTree::class, 'about');
        $pageAbout->publishRecursive();
-        $pageStaff = $this->objFromFixture('Page', 'staff');
+        $pageStaff = $this->objFromFixture(SiteTree::class, 'staff');
        $pageStaff->publishRecursive();
-        $pageStaffDuplicate = $this->objFromFixture('Page', 'staffduplicate');
+        $pageStaffDuplicate = $this->objFromFixture(SiteTree::class, 'staffduplicate');
        $pageStaffDuplicate->publishRecursive();

-        $parentPage = $this->objFromFixture('Page', 'about');
+        $parentPage = $this->objFromFixture(SiteTree::class, 'about');
        $parentPage->doUnpublish();

        Versioned::set_stage(Versioned::LIVE);
-        $this->assertNull(DataObject::get_by_id('Page', $pageAbout->ID));
-        $this->assertTrue(DataObject::get_by_id('Page', $pageStaff->ID) instanceof Page);
-        $this->assertTrue(DataObject::get_by_id('Page', $pageStaffDuplicate->ID) instanceof Page);
+        $this->assertNull(DataObject::get_by_id(SiteTree::class, $pageAbout->ID));
+        $this->assertTrue(DataObject::get_by_id(SiteTree::class, $pageStaff->ID) instanceof SiteTree);
+        $this->assertTrue(DataObject::get_by_id(SiteTree::class, $pageStaffDuplicate->ID) instanceof SiteTree);
        Versioned::set_stage(Versioned::DRAFT);
        Config::modify()->set(SiteTree::class, 'enforce_strict_hierarchy', true);
    }
@ -659,20 +683,20 @@ class SiteTreeTest extends SapphireTest
    {
        $this->logInWithPermission('ADMIN');

-        $pageAbout = $this->objFromFixture('Page', 'about');
+        $pageAbout = $this->objFromFixture(SiteTree::class, 'about');
        $pageAbout->publishRecursive();
-        $pageStaff = $this->objFromFixture('Page', 'staff');
+        $pageStaff = $this->objFromFixture(SiteTree::class, 'staff');
        $pageStaff->publishRecursive();
-        $pageStaffDuplicate = $this->objFromFixture('Page', 'staffduplicate');
+        $pageStaffDuplicate = $this->objFromFixture(SiteTree::class, 'staffduplicate');
        $pageStaffDuplicate->publishRecursive();

-        $parentPage = $this->objFromFixture('Page', 'about');
+        $parentPage = $this->objFromFixture(SiteTree::class, 'about');
        $parentPage->doUnpublish();

        Versioned::set_stage(Versioned::LIVE);
-        $this->assertNull(DataObject::get_by_id('Page', $pageAbout->ID));
-        $this->assertNull(DataObject::get_by_id('Page', $pageStaff->ID));
-        $this->assertNull(DataObject::get_by_id('Page', $pageStaffDuplicate->ID));
+        $this->assertNull(DataObject::get_by_id(SiteTree::class, $pageAbout->ID));
+        $this->assertNull(DataObject::get_by_id(SiteTree::class, $pageStaff->ID));
+        $this->assertNull(DataObject::get_by_id(SiteTree::class, $pageStaffDuplicate->ID));
        Versioned::set_stage(Versioned::DRAFT);
    }

@ -683,7 +707,7 @@ class SiteTreeTest extends SapphireTest
    public function testReadArchiveDate()
    {
        DBDatetime::set_mock_now('2009-07-02 14:05:07');
-        $oldPage = SiteTree::create();
+        $oldPage = new SiteTree();
        $oldPage->Title = 'A really old page';
        $oldPage->write();
        DBDatetime::clear_mock_now();
@ -691,7 +715,7 @@ class SiteTreeTest extends SapphireTest
        $date = '2009-07-02 14:05:07';
        Versioned::reading_archived_date($date);
        $result = SiteTree::get()->where([
-            '"SiteTree"."ParentID"' => 0
+            '"SiteTree"."ParentID"' => 0,
        ]);
        $this->assertCount(1, $result, '"A really old page" should be returned');
    }
@ -700,11 +724,11 @@ class SiteTreeTest extends SapphireTest
    {
        $editor = $this->objFromFixture(Member::class, "editor");

-        $home = $this->objFromFixture("Page", "home");
-        $staff = $this->objFromFixture("Page", "staff");
-        $products = $this->objFromFixture("Page", "products");
-        $product1 = $this->objFromFixture("Page", "product1");
-        $product4 = $this->objFromFixture("Page", "product4");
+        $home = $this->objFromFixture(SiteTree::class, "home");
+        $staff = $this->objFromFixture(SiteTree::class, "staff");
+        $products = $this->objFromFixture(SiteTree::class, "products");
+        $product1 = $this->objFromFixture(SiteTree::class, "product1");
+        $product4 = $this->objFromFixture(SiteTree::class, "product4");

        // Test logged out users cannot edit
        $this->logOut();
@ -725,7 +749,7 @@ class SiteTreeTest extends SapphireTest

    public function testCanEditWithAccessToAllSections()
    {
-        $page = new Page();
+        $page = new SiteTree();
        $page->write();
        $allSectionMember = $this->objFromFixture(Member::class, 'allsections');
        $securityAdminMember = $this->objFromFixture(Member::class, 'securityadmin');
@ -750,7 +774,7 @@ class SiteTreeTest extends SapphireTest
        $this->assertTrue(singleton(SiteTree::class)->canCreate());

        // Test creation underneath a parent which this user doesn't have access to
-        $parent = $this->objFromFixture('Page', 'about');
+        $parent = $this->objFromFixture(SiteTree::class, 'about');
        $this->assertFalse(singleton(SiteTree::class)->canCreate(null, ['Parent' => $parent]));

        // Test creation underneath a parent which doesn't allow a certain child
@ -766,13 +790,18 @@ class SiteTreeTest extends SapphireTest
        $this->assertTrue(singleton(SiteTree::class)->canCreate(null, ['Parent' => singleton(SiteTree::class)]));

        //Test we don't check for allowedChildren on parent context if it's not SiteTree instance
-        $this->assertTrue(singleton(SiteTree::class)->canCreate(null, ['Parent' => $this->objFromFixture(SiteTreeTest_DataObject::class, 'relations')]));
+        $this->assertTrue(
+            singleton(SiteTree::class)->canCreate(
+                null,
+                ['Parent' => $this->objFromFixture(SiteTreeTest_DataObject::class, 'relations')]
+            )
+        );
    }

    public function testEditPermissionsOnDraftVsLive()
    {
        // Create an inherit-permission page
-        $page = new Page();
+        $page = new SiteTree();
        $page->write();
        $page->CanEditType = "Inherit";
        $page->publishRecursive();
@ -820,10 +849,10 @@ class SiteTreeTest extends SapphireTest
    public function testCompareVersions()
    {
        // Necessary to avoid
-        $oldCleanerClass = Diff::$html_cleaner_class;
-        Diff::$html_cleaner_class = SiteTreeTest_NullHtmlCleaner::class;
+        $oldCleanerClass = HtmlDiff::$html_cleaner_class;
+        HtmlDiff::$html_cleaner_class = SiteTreeTest_NullHtmlCleaner::class;

-        $page = new Page();
+        $page = new SiteTree();
        $page->write();
        $this->assertEquals(1, $page->Version);

@ -841,7 +870,7 @@ class SiteTreeTest extends SapphireTest
        $processedContent = preg_replace('/>\s*/', '>', $processedContent ?? '');
        $this->assertEquals("<ins><span>This is a test</span></ins>", $processedContent);

-        Diff::$html_cleaner_class = $oldCleanerClass;
+        HtmlDiff::$html_cleaner_class = $oldCleanerClass;
    }

    public function testAuthorIDAndPublisherIDFilledOutOnPublish()
@ -851,16 +880,16 @@ class SiteTreeTest extends SapphireTest
        $this->logInAs($member);

        // Write the page
-        $about = $this->objFromFixture('Page', 'about');
+        $about = $this->objFromFixture(SiteTree::class, 'about');
        $about->Title = "Another title";
        $about->write();

        // Check the version created
        $savedVersion = DB::prepared_query(
            "SELECT \"AuthorID\", \"PublisherID\" FROM \"SiteTree_Versions\"
-			WHERE \"RecordID\" = ? ORDER BY \"Version\" DESC",
+            WHERE \"RecordID\" = ? ORDER BY \"Version\" DESC",
            [$about->ID]
-        )->first();
+        )->record();
        $this->assertEquals($member->ID, $savedVersion['AuthorID']);
        $this->assertEquals(0, $savedVersion['PublisherID']);

@ -868,9 +897,9 @@ class SiteTreeTest extends SapphireTest
        $about->publishRecursive();
        $publishedVersion = DB::prepared_query(
            "SELECT \"AuthorID\", \"PublisherID\" FROM \"SiteTree_Versions\"
-			WHERE \"RecordID\" = ? ORDER BY \"Version\" DESC",
+            WHERE \"RecordID\" = ? ORDER BY \"Version\" DESC",
            [$about->ID]
-        )->first();
+        )->record();

        // Check the version created
        $this->assertEquals($member->ID, $publishedVersion['AuthorID']);
@ -879,7 +908,7 @@ class SiteTreeTest extends SapphireTest

    public function testLinkShortcodeHandler()
    {
-        $aboutPage = $this->objFromFixture('Page', 'about');
+        $aboutPage = $this->objFromFixture(SiteTree::class, 'about');
        $redirectPage = $this->objFromFixture(RedirectorPage::class, 'external');

        $parser = new ShortcodeParser();
@ -891,12 +920,24 @@ class SiteTreeTest extends SapphireTest
        $aboutShortcodeExpected = $aboutPage->Link();
        $aboutEnclosedExpected  = sprintf('<a href="%s">Example Content</a>', $aboutPage->Link());

-        $this->assertEquals($aboutShortcodeExpected, $parser->parse($aboutShortcode), 'Test that simple linking works.');
-        $this->assertEquals($aboutEnclosedExpected, $parser->parse($aboutEnclosed), 'Test enclosed content is linked.');
+        $this->assertEquals(
+            $aboutShortcodeExpected,
+            $parser->parse($aboutShortcode),
+            'Test that simple linking works.'
+        );
+        $this->assertEquals(
+            $aboutEnclosedExpected,
+            $parser->parse($aboutEnclosed),
+            'Test enclosed content is linked.'
+        );

        $aboutPage->delete();

-        $this->assertEquals($aboutShortcodeExpected, $parser->parse($aboutShortcode), 'Test that deleted pages still link.');
+        $this->assertEquals(
+            $aboutShortcodeExpected,
+            $parser->parse($aboutShortcode),
+            'Test that deleted pages still link.'
+        );
        $this->assertEquals($aboutEnclosedExpected, $parser->parse($aboutEnclosed));

        $aboutShortcode = '[sitetree_link,id="-1"]';
@ -910,7 +951,10 @@ class SiteTreeTest extends SapphireTest
        $redirectExpected = 'http://www.google.com?a&amp;b';

        $this->assertEquals($redirectExpected, $parser->parse($redirectShortcode));
-        $this->assertEquals(sprintf('<a href="%s">Example Content</a>', $redirectExpected), $parser->parse($redirectEnclosed));
+        $this->assertEquals(
+            sprintf('<a href="%s">Example Content</a>', $redirectExpected),
+            $parser->parse($redirectEnclosed)
+        );

        $this->assertEquals('', $parser->parse('[sitetree_link]'), 'Test that invalid ID attributes are not parsed.');
        $this->assertEquals('', $parser->parse('[sitetree_link,id="text"]'));
@ -919,8 +963,8 @@ class SiteTreeTest extends SapphireTest

    public function testIsCurrent()
    {
-        $aboutPage = $this->objFromFixture('Page', 'about');
-        $productPage = $this->objFromFixture('Page', 'products');
+        $aboutPage = $this->objFromFixture(SiteTree::class, 'about');
+        $productPage = $this->objFromFixture(SiteTree::class, 'products');

        Director::set_current_page($aboutPage);
        $this->assertTrue($aboutPage->isCurrent(), 'Assert that basic isCurrent checks works.');
@ -928,7 +972,7 @@ class SiteTreeTest extends SapphireTest

        $this->assertTrue(
            DataObject::get_one(SiteTree::class, [
-                '"SiteTree"."Title"' => 'About Us'
+                '"SiteTree"."Title"' => 'About Us',
            ])->isCurrent(),
            'Assert that isCurrent works on another instance with the same ID.'
        );
@ -939,9 +983,9 @@ class SiteTreeTest extends SapphireTest

    public function testIsSection()
    {
-        $about = $this->objFromFixture('Page', 'about');
-        $staff = $this->objFromFixture('Page', 'staff');
-        $ceo   = $this->objFromFixture('Page', 'ceo');
+        $about = $this->objFromFixture(SiteTree::class, 'about');
+        $staff = $this->objFromFixture(SiteTree::class, 'staff');
+        $ceo   = $this->objFromFixture(SiteTree::class, 'ceo');

        Director::set_current_page($about);
        $this->assertTrue($about->isSection());
@ -961,7 +1005,7 @@ class SiteTreeTest extends SapphireTest

    public function testURLSegmentReserved()
    {
-        $siteTree = SiteTree::create(['URLSegment' => 'admin']);
+        $siteTree = new SiteTree(['URLSegment' => 'admin']);
        $segment = $siteTree->validURLSegment();

        $this->assertFalse($segment);
@ -1049,7 +1093,7 @@ class SiteTreeTest extends SapphireTest
        $sitetree->URLSegment = 'home-noconflict';
        $this->assertTrue($sitetree->validURLSegment());

-        $sitetree->ParentID   = $this->idFromFixture('Page', 'about');
+        $sitetree->ParentID   = $this->idFromFixture(SiteTree::class, 'about');
        $sitetree->URLSegment = 'home';
        $this->assertFalse($sitetree->validURLSegment(), 'Conflicts are still recognised with a ParentID value');

@ -1059,7 +1103,7 @@ class SiteTreeTest extends SapphireTest
        $sitetree->URLSegment = 'home';
        $this->assertFalse($sitetree->validURLSegment(), 'URLSegment conflicts are recognised');

-        $sitetree->ParentID = $this->idFromFixture('Page', 'about');
+        $sitetree->ParentID = $this->idFromFixture(SiteTree::class, 'about');
        $this->assertTrue($sitetree->validURLSegment(), 'URLSegments can be the same across levels');

        $sitetree->URLSegment = 'my-staff';
@ -1129,13 +1173,18 @@ class SiteTreeTest extends SapphireTest
        $sitetree->copyVersionToStage(Versioned::DRAFT, Versioned::LIVE);
        $sitetree = DataObject::get_by_id(SiteTree::class, $sitetree->ID, false);
        $this->assertEquals($sitetree->URLSegment, rawurlencode('brötchen'));
-        $sitetreeLive = Versioned::get_one_by_stage(SiteTree::class, Versioned::LIVE, '"SiteTree"."ID" = ' .$sitetree->ID, false);
+        $sitetreeLive = Versioned::get_one_by_stage(
+            SiteTree::class,
+            Versioned::LIVE,
+            '"SiteTree"."ID" = ' . $sitetree->ID,
+            false
+        );
        $this->assertEquals($sitetreeLive->URLSegment, rawurlencode('brötchen'));
    }

    public function testVersionsAreCreated()
    {
-        $p = new Page();
+        $p = new SiteTree();
        $p->Content = "one";
        $p->write();
        $this->assertEquals(1, $p->Version);
@ -1223,23 +1272,23 @@ class SiteTreeTest extends SapphireTest
                // Expected
                [ SiteTreeTest_ClassB::class ],
                // Assertion message
-                'Direct setting of allowed children'
+                'Direct setting of allowed children',
            ],
            [
                SiteTreeTest_ClassB::class,
                [ SiteTreeTest_ClassC::class, SiteTreeTest_ClassCext::class ],
-                'Includes subclasses'
+                'Includes subclasses',
            ],
            [
                SiteTreeTest_ClassC::class,
                [],
-                'Null setting'
+                'Null setting',
            ],
            [
                SiteTreeTest_ClassD::class,
                [SiteTreeTest_ClassC::class],
-                'Excludes subclasses if class is prefixed by an asterisk'
-            ]
+                'Excludes subclasses if class is prefixed by an asterisk',
+            ],
        ];
    }

@ -1280,7 +1329,10 @@ class SiteTreeTest extends SapphireTest

        $classCext->ParentID = $classD->ID;
        $valid = $classCext->validate();
-        $this->assertFalse($valid->isValid(), "Doesnt allow child where only parent class is allowed on parent node, and asterisk prefixing is used");
+        $this->assertFalse(
+            $valid->isValid(),
+            "Doesnt allow child where only parent class is allowed on parent node, and asterisk prefixing is used"
+        );
    }

    public function testClassDropdown()
@ -1299,8 +1351,8 @@ class SiteTreeTest extends SapphireTest
        $this->assertArrayHasKey(SiteTreeTest_ClassA::class, $method->invoke($sitetree));

        $this->logInWithPermission('ADMIN');
-        $rootPage = $this->objFromFixture(Page::class, 'home');
-        $nonRootPage = $this->objFromFixture(Page::class, 'staff');
+        $rootPage = $this->objFromFixture(SiteTree::class, 'home');
+        $nonRootPage = $this->objFromFixture(SiteTree::class, 'staff');

        $this->assertArrayNotHasKey(SiteTreeTest_NotRoot::class, $method->invoke($rootPage));
        $this->assertArrayHasKey(SiteTreeTest_NotRoot::class, $method->invoke($nonRootPage));
@ -1396,11 +1448,11 @@ class SiteTreeTest extends SapphireTest

    public function testGetBreadcrumbItems()
    {
-        $page = $this->objFromFixture("Page", "breadcrumbs");
+        $page = $this->objFromFixture(SiteTree::class, "breadcrumbs");
        $this->assertEquals(1, $page->getBreadcrumbItems()->count(), "Only display current page.");

        // Test breadcrumb order
-        $page = $this->objFromFixture("Page", "breadcrumbs5");
+        $page = $this->objFromFixture(SiteTree::class, "breadcrumbs5");
        $breadcrumbs = $page->getBreadcrumbItems();
        $this->assertEquals($breadcrumbs->count(), 5, "Display all breadcrumbs");
        $this->assertEquals($breadcrumbs->first()->Title, "Breadcrumbs", "Breadcrumbs should be the first item.");
@ -1420,16 +1472,16 @@ class SiteTreeTest extends SapphireTest
    public function testMetaTags()
    {
        $this->logInWithPermission('ADMIN');
-        $page = $this->objFromFixture('Page', 'metapage');
+        $page = $this->objFromFixture(SiteTree::class, 'metapage');

        // Test with title
        $meta = $page->MetaTags();
        $charset = Config::inst()->get(ContentNegotiator::class, 'encoding');
-        $this->assertStringContainsString('<meta http-equiv="Content-Type" content="text/html; charset='.$charset.'"', $meta);
+        $this->assertStringContainsString('<meta http-equiv="Content-Type" content="text/html; charset=' . $charset . '"', $meta);
        $this->assertStringContainsString('<meta name="description" content="The &lt;br /&gt; and &lt;br&gt; tags"', $meta);
        $this->assertStringContainsString('<link rel="canonical" href="http://www.mysite.com/html-and-xml"', $meta);
-        $this->assertStringContainsString('<meta name="x-page-id" content="'.$page->ID.'"', $meta);
-        $this->assertStringContainsString('<meta name="x-cms-edit-link" content="'.$page->CMSEditLink().'"', $meta);
+        $this->assertStringContainsString('<meta name="x-page-id" content="' . $page->ID.'"', $meta);
+        $this->assertStringContainsString('<meta name="x-cms-edit-link" content="' . $page->CMSEditLink().'"', $meta);
        $this->assertStringContainsString('<title>HTML &amp; XML</title>', $meta);

        // Test without title
@ -1444,7 +1496,7 @@ class SiteTreeTest extends SapphireTest
    {
        $this->logInWithPermission('ADMIN');
        /** @var SiteTree $page */
-        $page = $this->objFromFixture('Page', 'metapage');
+        $page = $this->objFromFixture(SiteTree::class, 'metapage');

        $charset = Config::inst()->get(ContentNegotiator::class, 'encoding');

@ -1526,8 +1578,8 @@ class SiteTreeTest extends SapphireTest

        // both pages are viewable in stage
        Versioned::set_stage(Versioned::DRAFT);
-        $about = $this->objFromFixture('Page', 'about');
-        $staff = $this->objFromFixture('Page', 'staff');
+        $about = $this->objFromFixture(SiteTree::class, 'about');
+        $staff = $this->objFromFixture(SiteTree::class, 'staff');
        $this->assertFalse($about->isOrphaned());
        $this->assertFalse($staff->isOrphaned());
        $this->assertTrue($about->canView($member));
@ -1538,23 +1590,23 @@ class SiteTreeTest extends SapphireTest
        $this->assertFalse($staff->isOrphaned());
        $this->assertTrue($staff->canView($member));
        Versioned::set_stage(Versioned::LIVE);
-        $staff = $this->objFromFixture('Page', 'staff'); // Live copy of page
+        $staff = $this->objFromFixture(SiteTree::class, 'staff'); // Live copy of page
        $this->assertTrue($staff->isOrphaned()); // because parent isn't published
        $this->assertFalse($staff->canView($member));

        // Publishing the parent page should restore visibility
        Versioned::set_stage(Versioned::DRAFT);
-        $about = $this->objFromFixture('Page', 'about');
+        $about = $this->objFromFixture(SiteTree::class, 'about');
        $about->copyVersionToStage(Versioned::DRAFT, Versioned::LIVE);
        Versioned::set_stage(Versioned::LIVE);
-        $staff = $this->objFromFixture('Page', 'staff');
+        $staff = $this->objFromFixture(SiteTree::class, 'staff');
        $this->assertFalse($staff->isOrphaned());
        $this->assertTrue($staff->canView($member));

        // Removing staging page should not prevent live page being visible
        $about->deleteFromStage('Stage');
        $staff->deleteFromStage('Stage');
-        $staff = $this->objFromFixture('Page', 'staff');
+        $staff = $this->objFromFixture(SiteTree::class, 'staff');
        $this->assertFalse($staff->isOrphaned());
        $this->assertTrue($staff->canView($member));

@ -1569,8 +1621,8 @@ class SiteTreeTest extends SapphireTest
    {
        $this->logInWithPermission('ADMIN');

-        /** @var Page $page */
-        $page = $this->objFromFixture('Page', 'home');
+        /** @var SiteTree $page */
+        $page = $this->objFromFixture(SiteTree::class, 'home');
        $this->assertTrue($page->canAddChildren());
        $this->assertTrue($page->isOnDraft());
        $this->assertFalse($page->isPublished());
@ -1647,23 +1699,24 @@ class SiteTreeTest extends SapphireTest
    }

    /**
-     * Test that the controller name for a SiteTree instance can be gathered by appending "Controller" to the SiteTree
+     * Test that the controller name for a Page instance can be gathered by appending "Controller" to the Page
     * class name in a PSR-2 compliant manner.
     */
    public function testGetControllerName()
    {
-        $class = new Page;
-        $this->assertSame('PageController', $class->getControllerName());
+        $page = new Page();
+        $this->assertSame(PageController::class, $page->getControllerName());
    }

+
    /**
     * Test that the controller name for a SiteTree instance can be gathered when set directly via config var
     */
    public function testGetControllerNameFromConfig()
    {
-        Config::inst()->set(Page::class, 'controller_name', 'This\\Is\\A\\New\\Controller');
-        $class = new Page;
-        $this->assertSame('This\\Is\\A\\New\\Controller', $class->getControllerName());
+        Config::inst()->set(SiteTree::class, 'controller_name', 'This\\Is\\A\\New\\Controller');
+        $page = new SiteTree();
+        $this->assertSame('This\\Is\\A\\New\\Controller', $page->getControllerName());
    }

    /**
@ -1679,21 +1732,9 @@ class SiteTreeTest extends SapphireTest
        $this->assertSame(SiteTreeTest_NamespaceMapTestController::class, $namespacedSiteTree->getControllerName());
    }

-    /**
-     * Test that underscored class names (legacy) are still supported (deprecation notice is issued though).
-     */
-    public function testGetControllerNameWithUnderscoresIsSupported()
-    {
-        if (Deprecation::isEnabled()) {
-            $this->markTestSkipped('Test calls deprecated code');
-        }
-        $class = new SiteTreeTest_LegacyControllerName;
-        $this->assertEquals(SiteTreeTest_LegacyControllerName_Controller::class, $class->getControllerName());
-    }
-
    public function testTreeTitleCache()
    {
-        $siteTree = SiteTree::create();
+        $siteTree = new SiteTree();
        $user = $this->objFromFixture(Member::class, 'allsections');
        Security::setCurrentUser($user);
        $pageClass = array_values(SiteTree::page_type_classes())[0];
@ -1780,7 +1821,7 @@ class SiteTreeTest extends SapphireTest
        }

        // Create new page on DRAFT
-        $page = SiteTree::create();
+        $page = new SiteTree();
        $page->Content = $content;
        $page->write();

@ -1796,7 +1837,7 @@ class SiteTreeTest extends SapphireTest
    public function testGetCMSActions()
    {
        // Create new page on DRAFT
-        $page = SiteTree::create();
+        $page = new SiteTree();
        $page->Content = md5(rand(0, PHP_INT_MAX));
        $page->write();

@ -1926,7 +1967,7 @@ class SiteTreeTest extends SapphireTest
    public function testGetCMSActionsWithoutForms()
    {
        // Create new page on DRAFT
-        $page = SiteTree::create();
+        $page = new SiteTree();
        $page->Content = md5(rand(0, PHP_INT_MAX));
        $page->write();

@ -2032,20 +2073,10 @@ class SiteTreeTest extends SapphireTest
     */
    public function testSanitiseExtraMeta(string $extraMeta, string $expected, string $message): void
    {
-        // If using HTML5Value then the 'somethingdodgy' test won't be converted to valid html
-        // However if using the default HTMLValue, then it will be converted to valid html
-        $isDodgyAndUsingHTML5 = strpos($expected, 'somethingdodgy') !== false &&
-            (HTMLValue::create() instanceof HTML5Value);
-        if ($isDodgyAndUsingHTML5) {
-            $this->expectException(ValidationException::class);
-            $this->expectExceptionMessage('Custom Meta Tags does not contain valid HTML');
-        }
        $siteTree = new SiteTree();
        $siteTree->ExtraMeta = $extraMeta;
        $siteTree->write();
-        if (!$isDodgyAndUsingHTML5) {
-            $this->assertSame($expected, $siteTree->ExtraMeta, $message);
-        }
+        $this->assertSame($expected, $siteTree->ExtraMeta, $message);
    }

    public function provideSanitiseExtraMeta(): array
@ -2075,50 +2106,12 @@ class SiteTreeTest extends SapphireTest
                '<link rel="canonical" accesskey="X" onclick="alert(1)" name="x" />',
                '<link rel="canonical" name="x">',
                'Multiple attributes are removed'
-            ]
-        ];
-    }
-
-   /**
-    * @dataProvider provideSanatiseInvalidExtraMeta
-    */
-    public function testSanatiseInvalidExtraMetaHTML4Value(string $extraMeta, string $expected): void
-    {
-        Injector::inst()->registerService(HTML4Value::create(), HTMLValue::class);
-        $siteTree = new SiteTree();
-        $siteTree->ExtraMeta = $extraMeta;
-        $siteTree->write();
-        $this->assertSame(
-            $expected,
-            $siteTree->ExtraMeta,
-            'Invalid HTML is converted to valid HTML and parsed'
-        );
-    }
-
-    /**
-     * @dataProvider provideSanatiseInvalidExtraMeta
-     */
-    public function testSanatiseInvalidExtraMetaHTML5Value(string $extraMeta): void
-    {
-        // HTML5Value comes from the module silverstripe/html5
-        if (!class_exists(HTML5Value::class)) {
-            $this->markTestSkipped('HTML5Value class does not exist');
-        }
-        Injector::inst()->registerService(HTML5Value::create(), HTMLValue::class);
-        $this->expectException(ValidationException::class);
-        $this->expectExceptionMessage('Custom Meta Tags does not contain valid HTML');
-        $siteTree = new SiteTree();
-        $siteTree->ExtraMeta = $extraMeta;
-        $siteTree->write();
-    }
-
-    public function provideSanatiseInvalidExtraMeta(): array
-    {
-        return [
+            ],
            [
-                '<link rel="canonical" href="valid" ;;// somethingdodgy < onmouseover=alert(1)',
-                '<link rel="canonical" href="valid" somethingdodgy="">'
-            ]
+                '<link rel="canonical" href="valid" ;;// somethingdodgy <onmouseover=alert(1)>',
+                '<link rel="canonical" href="valid" somethingdodgy=""><onmouseover></onmouseover>',
+                'Invalid HTML is converted to valid HTML and parsed'
+            ],
        ];
    }

--- a/tests/php/Model/SiteTreeTest.yml
+++ b/tests/php/Model/SiteTreeTest.yml
@ -44,7 +44,7 @@ SilverStripe\Security\Member:
  securityadmin:
    Groups: =>SilverStripe\Security\Group.securityadmins

-Page:
+SilverStripe\CMS\Model\SiteTree:
  home:
    Title: Home
    CanEditType: OnlyTheseUsers
@ -56,14 +56,14 @@ Page:
  staff:
    Title: Staff
    URLSegment: my-staff
-    Parent: =>Page.about
+    Parent: =>SilverStripe\CMS\Model\SiteTree.about
  ceo:
    Title: CEO
-    Parent: =>Page.staff
+    Parent: =>SilverStripe\CMS\Model\SiteTree.staff
  staffduplicate:
    Title: Staff
    URLSegment: my-staff
-    Parent: =>Page.about
+    Parent: =>SilverStripe\CMS\Model\SiteTree.about
    ShowInMenus: 0
  products:
    Title: Products
@ -71,19 +71,19 @@ Page:
    EditorGroups: =>SilverStripe\Security\Group.editors
  product1:
    Title: 1.1 Test Product
-    Parent: =>Page.products
+    Parent: =>SilverStripe\CMS\Model\SiteTree.products
    CanEditType: Inherit
  product2:
    Title: Another Product
-    Parent: =>Page.products
+    Parent: =>SilverStripe\CMS\Model\SiteTree.products
    CanEditType: Inherit
  product3:
    Title: Another Product
-    Parent: =>Page.products
+    Parent: =>SilverStripe\CMS\Model\SiteTree.products
    CanEditType: Inherit
  product4:
    Title: Another Product
-    Parent: =>Page.products
+    Parent: =>SilverStripe\CMS\Model\SiteTree.products
    CanEditType: OnlyTheseUsers
    EditorGroups: =>SilverStripe\Security\Group.admins
  contact:
@ -102,16 +102,16 @@ Page:
    Title: 'Breadcrumbs'
  breadcrumbs2:
    Title: 'Breadcrumbs 2'
-    Parent: =>Page.breadcrumbs
+    Parent: =>SilverStripe\CMS\Model\SiteTree.breadcrumbs
  breadcrumbs3:
    Title: 'Breadcrumbs 3'
-    Parent: =>Page.breadcrumbs2
+    Parent: =>SilverStripe\CMS\Model\SiteTree.breadcrumbs2
  breadcrumbs4:
    Title: 'Breadcrumbs 4'
-    Parent: =>Page.breadcrumbs3
+    Parent: =>SilverStripe\CMS\Model\SiteTree.breadcrumbs3
  breadcrumbs5:
    Title: 'Breadcrumbs 5'
-    Parent: =>Page.breadcrumbs4
+    Parent: =>SilverStripe\CMS\Model\SiteTree.breadcrumbs4

 SilverStripe\CMS\Tests\Model\SiteTreeTest_Conflicted:
  parent:
@ -127,7 +127,7 @@ SilverStripe\CMS\Model\RedirectorPage:
 SilverStripe\CMS\Tests\Model\SiteTreeTest_DataObject:
  relations:
    Title: 'Linked DataObject'
-    Pages: =>Page.home,=>Page.about,=>Page.staff
+    Pages: =>SilverStripe\CMS\Model\SiteTree.home,=>SilverStripe\CMS\Model\SiteTree.about,=>SilverStripe\CMS\Model\SiteTree.staff

 SilverStripe\CMS\Tests\Model\SiteTreeBrokenLinksTest\NotPageObject:
  object1:
--- a/tests/php/Model/SiteTreeTest_AdminDenied.php
+++ b/tests/php/Model/SiteTreeTest_AdminDenied.php
@ -3,9 +3,9 @@
 namespace SilverStripe\CMS\Tests\Model;

 use SilverStripe\Dev\TestOnly;
-use Page;
+use SilverStripe\CMS\Model\SiteTree;

-class SiteTreeTest_AdminDenied extends Page implements TestOnly
+class SiteTreeTest_AdminDenied extends SiteTree implements TestOnly
 {
    private static $table_name = 'SiteTreeTest_AdminDenied';

--- a/tests/php/Model/SiteTreeTest_ClassA.php
+++ b/tests/php/Model/SiteTreeTest_ClassA.php
@ -3,18 +3,18 @@
 namespace SilverStripe\CMS\Tests\Model;

 use SilverStripe\Dev\TestOnly;
-use Page;
+use SilverStripe\CMS\Model\SiteTree;

-class SiteTreeTest_ClassA extends Page implements TestOnly
+class SiteTreeTest_ClassA extends SiteTree implements TestOnly
 {
    private static $table_name = 'SiteTreeTest_ClassA';

    private static $need_permission = [
        'ADMIN',
-        'CMS_ACCESS_CMSMain'
+        'CMS_ACCESS_CMSMain',
    ];

    private static $allowed_children = [
-        SiteTreeTest_ClassB::class
+        SiteTreeTest_ClassB::class,
    ];
 }
--- a/tests/php/Model/SiteTreeTest_ClassB.php
+++ b/tests/php/Model/SiteTreeTest_ClassB.php
@ -3,14 +3,14 @@
 namespace SilverStripe\CMS\Tests\Model;

 use SilverStripe\Dev\TestOnly;
-use Page;
+use SilverStripe\CMS\Model\SiteTree;

-class SiteTreeTest_ClassB extends Page implements TestOnly
+class SiteTreeTest_ClassB extends SiteTree implements TestOnly
 {
    private static $table_name = 'SiteTreeTest_ClassB';

    // Also allowed subclasses
    private static $allowed_children = [
-        SiteTreeTest_ClassC::class
+        SiteTreeTest_ClassC::class,
    ];
 }
--- a/tests/php/Model/SiteTreeTest_ClassC.php
+++ b/tests/php/Model/SiteTreeTest_ClassC.php
@ -3,9 +3,9 @@
 namespace SilverStripe\CMS\Tests\Model;

 use SilverStripe\Dev\TestOnly;
-use Page;
+use SilverStripe\CMS\Model\SiteTree;

-class SiteTreeTest_ClassC extends Page implements TestOnly
+class SiteTreeTest_ClassC extends SiteTree implements TestOnly
 {
    private static $table_name = 'SiteTreeTest_ClassC';

--- a/tests/php/Model/SiteTreeTest_ClassCext.php
+++ b/tests/php/Model/SiteTreeTest_ClassCext.php
@ -10,6 +10,6 @@ class SiteTreeTest_ClassCext extends SiteTreeTest_ClassC implements TestOnly

    // Override SiteTreeTest_ClassC definitions
    private static $allowed_children = [
-        SiteTreeTest_ClassB::class
+        SiteTreeTest_ClassB::class,
    ];
 }
--- a/tests/php/Model/SiteTreeTest_ClassD.php
+++ b/tests/php/Model/SiteTreeTest_ClassD.php
@ -3,9 +3,9 @@
 namespace SilverStripe\CMS\Tests\Model;

 use SilverStripe\Dev\TestOnly;
-use Page;
+use SilverStripe\CMS\Model\SiteTree;

-class SiteTreeTest_ClassD extends Page implements TestOnly
+class SiteTreeTest_ClassD extends SiteTree implements TestOnly
 {
    private static $table_name = 'SiteTreeTest_ClassD';

--- a/tests/php/Model/SiteTreeTest_ClassE.php
+++ b/tests/php/Model/SiteTreeTest_ClassE.php
@ -4,9 +4,9 @@ namespace SilverStripe\CMS\Tests\Model;

 use SilverStripe\Dev\TestOnly;
 use SilverStripe\ORM\HiddenClass;
-use Page;
+use SilverStripe\CMS\Model\SiteTree;

-class SiteTreeTest_ClassE extends Page implements TestOnly, HiddenClass
+class SiteTreeTest_ClassE extends SiteTree implements TestOnly, HiddenClass
 {
    private static $table_name = 'SiteTreeTest_ClassE';
 }
--- a/tests/php/Model/SiteTreeTest_Conflicted.php
+++ b/tests/php/Model/SiteTreeTest_Conflicted.php
@ -3,9 +3,9 @@
 namespace SilverStripe\CMS\Tests\Model;

 use SilverStripe\Dev\TestOnly;
-use Page;
+use SilverStripe\CMS\Model\SiteTree;

-class SiteTreeTest_Conflicted extends Page implements TestOnly
+class SiteTreeTest_Conflicted extends SiteTree implements TestOnly
 {
    private static $table_name = 'SiteTreeTest_Conflicted';
 }
--- a/tests/php/Model/SiteTreeTest_ConflictedController.php
+++ b/tests/php/Model/SiteTreeTest_ConflictedController.php
@ -3,12 +3,12 @@
 namespace SilverStripe\CMS\Tests\Model;

 use SilverStripe\Dev\TestOnly;
-use PageController;
+use SilverStripe\CMS\Controllers\ContentController;

-class SiteTreeTest_ConflictedController extends PageController implements TestOnly
+class SiteTreeTest_ConflictedController extends ContentController implements TestOnly
 {
    private static $allowed_actions = [
-        'conflicted-action'
+        'conflicted-action',
    ];

    public function hasActionTemplate($template)
--- a/tests/php/Model/SiteTreeTest_LegacyControllerName.php
+++ b/tests/php/Model/SiteTreeTest_LegacyControllerName.php
@ -3,12 +3,12 @@
 namespace SilverStripe\CMS\Tests\Model;

 use SilverStripe\Dev\TestOnly;
-use Page;
+use SilverStripe\CMS\Model\SiteTree;

 /**
 * An empty SiteTree instance with a controller to test that legacy controller names can still be loaded
 */
-class SiteTreeTest_LegacyControllerName extends Page implements TestOnly
+class SiteTreeTest_LegacyControllerName extends SiteTree implements TestOnly
 {
    private static $table_name = 'SiteTreeTest_LegacyControllerName';
 }
--- a/tests/php/Model/SiteTreeTest_LegacyControllerName_Controller.php
+++ b/tests/php/Model/SiteTreeTest_LegacyControllerName_Controller.php
@ -3,9 +3,8 @@
 namespace SilverStripe\CMS\Tests\Model;

 use SilverStripe\Dev\TestOnly;
-use PageController;
+use SilverStripe\CMS\Controllers\ContentController;

-class SiteTreeTest_LegacyControllerName_Controller extends PageController implements TestOnly
+class SiteTreeTest_LegacyControllerName_Controller extends ContentController implements TestOnly
 {
-
 }
--- a/tests/php/Model/SiteTreeTest_NotRoot.php
+++ b/tests/php/Model/SiteTreeTest_NotRoot.php
@ -3,9 +3,9 @@
 namespace SilverStripe\CMS\Tests\Model;

 use SilverStripe\Dev\TestOnly;
-use Page;
+use SilverStripe\CMS\Model\SiteTree;

-class SiteTreeTest_NotRoot extends Page implements TestOnly
+class SiteTreeTest_NotRoot extends SiteTree implements TestOnly
 {
    private static $table_name = 'SiteTreeTest_NotRoot';

--- a/tests/php/Model/SiteTreeTest_PageNode.php
+++ b/tests/php/Model/SiteTreeTest_PageNode.php
@ -3,9 +3,9 @@
 namespace SilverStripe\CMS\Tests\Model;

 use SilverStripe\Dev\TestOnly;
-use Page;
+use SilverStripe\CMS\Model\SiteTree;

-class SiteTreeTest_PageNode extends Page implements TestOnly
+class SiteTreeTest_PageNode extends SiteTree implements TestOnly
 {
    private static $table_name = 'SiteTreeTest_PageNode';
 }
--- a/tests/php/Model/SiteTreeTest_PageNodeController.php
+++ b/tests/php/Model/SiteTreeTest_PageNodeController.php
@ -3,8 +3,8 @@
 namespace SilverStripe\CMS\Tests\Model;

 use SilverStripe\Dev\TestOnly;
-use PageController;
+use SilverStripe\CMS\Controllers\ContentController;

-class SiteTreeTest_PageNodeController extends PageController implements TestOnly
+class SiteTreeTest_PageNodeController extends ContentController implements TestOnly
 {
 }
--- a/tests/php/Model/VirtualPageTest.php
+++ b/tests/php/Model/VirtualPageTest.php
@ -2,7 +2,6 @@

 namespace SilverStripe\CMS\Tests\Model;

-use Page;
 use SilverStripe\CMS\Controllers\ModelAsController;
 use SilverStripe\CMS\Model\RedirectorPage;
 use SilverStripe\CMS\Model\SiteTree;
@ -43,8 +42,8 @@ class VirtualPageTest extends FunctionalTest

    protected static $required_extensions = [
        SiteTree::class => [
-            VirtualPageTest_PageExtension::class
-        ]
+            VirtualPageTest_PageExtension::class,
+        ],
    ];

    protected function setUp(): void
@ -63,8 +62,8 @@ class VirtualPageTest extends FunctionalTest
        );

        // Ensure all pages are published
-        /** @var Page $page */
-        foreach (Page::get() as $page) {
+        /** @var SiteTree $page */
+        foreach (SiteTree::get() as $page) {
            $page->publishSingle();
        }
    }
@ -75,8 +74,8 @@ class VirtualPageTest extends FunctionalTest
     */
    public function testEditingSourcePageUpdatesVirtualPages()
    {
-        /** @var Page $master */
-        $master = $this->objFromFixture('Page', 'master');
+        /** @var SiteTree $master */
+        $master = $this->objFromFixture(SiteTree::class, 'master');
        $master->Title = "New title";
        $master->MenuTitle = "New menutitle";
        $master->Content = "<p>New content</p>";
@ -97,7 +96,7 @@ class VirtualPageTest extends FunctionalTest
    public function testMetaTags()
    {
        $this->logInWithPermission('ADMIN');
-        $master = $this->objFromFixture('Page', 'master');
+        $master = $this->objFromFixture(SiteTree::class, 'master');
        $vp1 = $this->objFromFixture(VirtualPage::class, 'vp1');

        // Test with title
@ -118,8 +117,8 @@ class VirtualPageTest extends FunctionalTest
    {
        $this->logInWithPermission('ADMIN');

-        /** @var Page $master */
-        $master = $this->objFromFixture('Page', 'master');
+        /** @var SiteTree $master */
+        $master = $this->objFromFixture(SiteTree::class, 'master');
        $master->publishRecursive();

        $master->Title = "New title";
@ -160,13 +159,13 @@ class VirtualPageTest extends FunctionalTest
        $vp = new VirtualPage();
        $vp->write();

-        $vp->CopyContentFromID = $this->idFromFixture('Page', 'master');
+        $vp->CopyContentFromID = $this->idFromFixture(SiteTree::class, 'master');
        $vp->write();

        $this->assertEquals("My Page", $vp->Title);
        $this->assertEquals("My Page Nav", $vp->MenuTitle);

-        $vp->CopyContentFromID = $this->idFromFixture('Page', 'master2');
+        $vp->CopyContentFromID = $this->idFromFixture(SiteTree::class, 'master2');
        $vp->write();

        $this->assertEquals("My Other Page", $vp->Title);
@ -180,7 +179,7 @@ class VirtualPageTest extends FunctionalTest
     */
    public function testPublishingAVirtualPageCopiedPublishedContentNotDraftContent()
    {
-        $p = new Page();
+        $p = new SiteTree();
        $p->Content = "published content";
        $p->write();
        $p->publishRecursive();
@ -220,7 +219,7 @@ class VirtualPageTest extends FunctionalTest
    public function testCantPublishVirtualPagesBeforeTheirSource()
    {
        // An unpublished source page
-        $p = new Page();
+        $p = new SiteTree();
        $p->Content = "test content";
        $p->write();

@ -241,7 +240,7 @@ class VirtualPageTest extends FunctionalTest

    public function testCanEdit()
    {
-        $parentPage = $this->objFromFixture('Page', 'master3');
+        $parentPage = $this->objFromFixture(SiteTree::class, 'master3');
        $virtualPage = $this->objFromFixture(VirtualPage::class, 'vp3');
        $bob = $this->objFromFixture(Member::class, 'bob');
        $andrew = $this->objFromFixture(Member::class, 'andrew');
@ -259,8 +258,8 @@ class VirtualPageTest extends FunctionalTest

    public function testCanView()
    {
-        /** @var Page $parentPage */
-        $parentPage = $this->objFromFixture('Page', 'master3');
+        /** @var SiteTree $parentPage */
+        $parentPage = $this->objFromFixture(SiteTree::class, 'master3');
        $parentPage->copyVersionToStage(Versioned::DRAFT, Versioned::LIVE);

        /** @var VirtualPage $virtualPage */
@ -283,7 +282,7 @@ class VirtualPageTest extends FunctionalTest
    public function testVirtualPagesArentInappropriatelyPublished()
    {
        // Fixture
-        $p = new Page();
+        $p = new SiteTree();
        $p->Content = "test content";
        $p->write();
        $vp = new VirtualPage();
@ -332,7 +331,7 @@ class VirtualPageTest extends FunctionalTest
    public function testUnpublishingSourcePageOfAVirtualPageAlsoUnpublishesVirtualPage()
    {
        // Create page and virutal page
-        $p = new Page();
+        $p = new SiteTree();
        $p->Title = "source";
        $p->write();
        $this->assertTrue($p->publishRecursive());
@ -364,7 +363,7 @@ class VirtualPageTest extends FunctionalTest
    public function testDeletingFromLiveSourcePageOfAVirtualPageAlsoUnpublishesVirtualPage()
    {
        // Create page and virutal page
-        $p = new Page();
+        $p = new SiteTree();
        $p->Title = "source";
        $p->write();
        $this->assertTrue($p->publishRecursive());
@ -384,7 +383,7 @@ class VirtualPageTest extends FunctionalTest
            ->byID($pID);
        $this->assertNull($vpDraft);
        // Delete the source page form live, confirm that the virtual page has also been unpublished
-        /** @var Page $pLive */
+        /** @var SiteTree $pLive */
        $pLive = Versioned::get_by_stage(SiteTree::class, Versioned::LIVE)
            ->byID($pID);
        $this->assertTrue($pLive->doUnpublish());
--- a/tests/php/Model/VirtualPageTest.yml
+++ b/tests/php/Model/VirtualPageTest.yml
@ -31,7 +31,7 @@ SilverStripe\Security\Member:
  alice:
    Email: alice@alice.com
    Groups: =>SilverStripe\Security\Group.alicegroup
-Page:
+SilverStripe\CMS\Model\SiteTree:
  master:
    Title: My Page
    MenuTitle: My Page Nav
@ -52,15 +52,15 @@ SilverStripe\CMS\Tests\Model\VirtualPageTest_ClassA:
 SilverStripe\CMS\Model\VirtualPage:
  vp1:
    Title: vp1
-    CopyContentFrom: =>Page.master
-    Parent: =>Page.holder
+    CopyContentFrom: =>SilverStripe\CMS\Model\SiteTree.master
+    Parent: =>SilverStripe\CMS\Model\SiteTree.holder
  vp2:
    Title: vp2
-    CopyContentFrom: =>Page.master
-    Parent: =>Page.holder
+    CopyContentFrom: =>SilverStripe\CMS\Model\SiteTree.master
+    Parent: =>SilverStripe\CMS\Model\SiteTree.holder
  vp3:
-    CopyContentFrom: =>Page.master3
-    Parent: =>Page.holder
+    CopyContentFrom: =>SilverStripe\CMS\Model\SiteTree.master3
+    Parent: =>SilverStripe\CMS\Model\SiteTree.holder
    CanEditType: OnlyTheseUsers
    CanViewType: OnlyTheseUsers
    EditorGroups: =>SilverStripe\Security\Group.andrewgroup
--- a/tests/php/Model/VirtualPageTest_ClassA.php
+++ b/tests/php/Model/VirtualPageTest_ClassA.php
@ -3,9 +3,9 @@
 namespace SilverStripe\CMS\Tests\Model;

 use SilverStripe\Dev\TestOnly;
-use Page;
+use SilverStripe\CMS\Model\SiteTree;

-class VirtualPageTest_ClassA extends Page implements TestOnly
+class VirtualPageTest_ClassA extends SiteTree implements TestOnly
 {
    private static $table_name = 'VirtualPageTest_ClassA';

--- a/tests/php/Model/VirtualPageTest_ClassAController.php
+++ b/tests/php/Model/VirtualPageTest_ClassAController.php
@ -3,12 +3,12 @@
 namespace SilverStripe\CMS\Tests\Model;

 use SilverStripe\Dev\TestOnly;
-use PageController;
+use SilverStripe\CMS\Controllers\ContentController;

-class VirtualPageTest_ClassAController extends PageController implements TestOnly
+class VirtualPageTest_ClassAController extends ContentController implements TestOnly
 {
    private static $allowed_actions = [
-        'testaction'
+        'testaction',
    ];

    public function testMethod()
--- a/tests/php/Model/VirtualPageTest_ClassB.php
+++ b/tests/php/Model/VirtualPageTest_ClassB.php
@ -3,9 +3,9 @@
 namespace SilverStripe\CMS\Tests\Model;

 use SilverStripe\Dev\TestOnly;
-use Page;
+use SilverStripe\CMS\Model\SiteTree;

-class VirtualPageTest_ClassB extends Page implements TestOnly
+class VirtualPageTest_ClassB extends SiteTree implements TestOnly
 {
    private static $table_name = 'VirtualPageTest_ClassB';

--- a/tests/php/Model/VirtualPageTest_ClassC.php
+++ b/tests/php/Model/VirtualPageTest_ClassC.php
@ -3,9 +3,9 @@
 namespace SilverStripe\CMS\Tests\Model;

 use SilverStripe\Dev\TestOnly;
-use Page;
+use SilverStripe\CMS\Model\SiteTree;

-class VirtualPageTest_ClassC extends Page implements TestOnly
+class VirtualPageTest_ClassC extends SiteTree implements TestOnly
 {
    private static $table_name = 'VirtualPageTest_ClassC';

--- a/tests/php/Model/VirtualPageTest_NotRoot.php
+++ b/tests/php/Model/VirtualPageTest_NotRoot.php
@ -3,9 +3,9 @@
 namespace SilverStripe\CMS\Tests\Model;

 use SilverStripe\Dev\TestOnly;
-use Page;
+use SilverStripe\CMS\Model\SiteTree;

-class VirtualPageTest_NotRoot extends Page implements TestOnly
+class VirtualPageTest_NotRoot extends SiteTree implements TestOnly
 {
    private static $table_name = 'VirtualPageTest_NotRoot';

--- a/tests/php/Model/VirtualPageTest_PageExtension.php
+++ b/tests/php/Model/VirtualPageTest_PageExtension.php
@ -9,7 +9,8 @@ class VirtualPageTest_PageExtension extends DataExtension implements TestOnly
 {
    private static $db = [
        // These fields are just on an extension to simulate shared properties between Page and VirtualPage.
-        // Not possible through direct $db definitions due to VirtualPage inheriting from Page, and Page being defined elsewhere.
+        // Not possible through direct $db definitions due to VirtualPage inheriting from Page,
+        // and Page being defined elsewhere.
        'MySharedVirtualField' => 'Text',
        'MySharedNonVirtualField' => 'Text',
    ];
--- a/tests/php/Model/VirtualPageTest_PageWithAllowedChildren.php
+++ b/tests/php/Model/VirtualPageTest_PageWithAllowedChildren.php
@ -4,9 +4,9 @@ namespace SilverStripe\CMS\Tests\Model;

 use SilverStripe\CMS\Model\VirtualPage;
 use SilverStripe\Dev\TestOnly;
-use Page;
+use SilverStripe\CMS\Model\SiteTree;

-class VirtualPageTest_PageWithAllowedChildren extends Page implements TestOnly
+class VirtualPageTest_PageWithAllowedChildren extends SiteTree implements TestOnly
 {
    private static $table_name = 'VirtualPageTest_PageWithAllowedChildren';

--- a/tests/php/Reports/CmsReportsTest.php
+++ b/tests/php/Reports/CmsReportsTest.php
@ -2,24 +2,22 @@

 namespace SilverStripe\CMS\Tests\Reports;

+use SilverStripe\Assets\File;
+use SilverStripe\CMS\Model\RedirectorPage;
 use SilverStripe\CMS\Model\SiteTree;
+use SilverStripe\CMS\Model\VirtualPage;
+use SilverStripe\CMS\Reports\BrokenFilesReport;
+use SilverStripe\CMS\Reports\BrokenLinksReport;
+use SilverStripe\CMS\Reports\BrokenRedirectorPagesReport;
+use SilverStripe\CMS\Reports\BrokenVirtualPagesReport;
+use SilverStripe\CMS\Reports\RecentlyEditedReport;
+use SilverStripe\Dev\SapphireTest;
 use SilverStripe\ORM\DB;
 use SilverStripe\ORM\FieldType\DBDatetime;
-use SilverStripe\CMS\Reports\RecentlyEditedReport;
-use SilverStripe\CMS\Reports\BrokenLinksReport;
-use SilverStripe\CMS\Reports\BrokenFilesReport;
-use SilverStripe\CMS\Model\VirtualPage;
-use SilverStripe\CMS\Reports\BrokenVirtualPagesReport;
-use SilverStripe\CMS\Model\RedirectorPage;
-use SilverStripe\CMS\Reports\BrokenRedirectorPagesReport;
 use SilverStripe\Reports\Report;
-use SilverStripe\Assets\File;
-use SilverStripe\Dev\SapphireTest;
-use Page;

 class CmsReportsTest extends SapphireTest
 {
-
    protected static $fixture_file = 'CmsReportsTest.yml';

    private static $daysAgo = 14;
@ -29,14 +27,19 @@ class CmsReportsTest extends SapphireTest
        parent::setUp();

        // set the dates by hand: impossible to set via yml
-        $afterThreshold = strtotime('-'.(self::$daysAgo-1).' days', strtotime('31-06-2009 00:00:00'));
-        $beforeThreshold = strtotime('-'.(self::$daysAgo+1).' days', strtotime('31-06-2009 00:00:00'));
+        $afterThreshold = strtotime('-' . (self::$daysAgo - 1) . ' days', strtotime('31-06-2009 00:00:00'));
+        $beforeThreshold = strtotime('-' . (self::$daysAgo + 1) . ' days', strtotime('31-06-2009 00:00:00'));

        $after = $this->objFromFixture(SiteTree::class, 'after');
        $before = $this->objFromFixture(SiteTree::class, 'before');
-
-        DB::query("UPDATE \"SiteTree\" SET \"Created\"='2009-01-01 00:00:00', \"LastEdited\"='".date('Y-m-d H:i:s', $afterThreshold)."' WHERE \"ID\"='".$after->ID."'");
-        DB::query("UPDATE \"SiteTree\" SET \"Created\"='2009-01-01 00:00:00', \"LastEdited\"='".date('Y-m-d H:i:s', $beforeThreshold)."' WHERE \"ID\"='".$before->ID."'");
+        DB::query(
+            "UPDATE \"SiteTree\" SET \"Created\"='2009-01-01 00:00:00', \"LastEdited\"='" .
+            date('Y-m-d H:i:s', $afterThreshold) . "' WHERE \"ID\"='" . $after->ID . "'"
+        );
+        DB::query(
+            "UPDATE \"SiteTree\" SET \"Created\"='2009-01-01 00:00:00', \"LastEdited\"='" .
+            date('Y-m-d H:i:s', $beforeThreshold) . "' WHERE \"ID\"='" . $before->ID . "'"
+        );
    }

    /**
@ -52,13 +55,27 @@ class CmsReportsTest extends SapphireTest

        // ASSERT that the "draft" report is returning the correct results.
        $parameters = ['CheckSite' => 'Draft'];
-        $results = count($report->sourceRecords($parameters, null, null) ?? []) > 0;
-        $isDraftBroken ? $this->assertTrue($results, "{$class} has NOT returned the correct DRAFT results, as NO pages were found.") : $this->assertFalse($results, "{$class} has NOT returned the correct DRAFT results, as pages were found.");
+        $results = count($report->sourceRecords($parameters, null, null)) > 0;
+        $isDraftBroken
+            ? $this->assertTrue(
+                $results,
+                "{$class} has NOT returned the correct DRAFT results, as NO pages were found."
+            ) : $this->assertFalse(
+                $results,
+                "{$class} has NOT returned the correct DRAFT results, as pages were found."
+            );

        // ASSERT that the "published" report is returning the correct results.
        $parameters = ['CheckSite' => 'Published', 'OnLive' => 1];
        $results = count($report->sourceRecords($parameters, null, null) ?? []) > 0;
-        $isPublishedBroken ? $this->assertTrue($results, "{$class} has NOT returned the correct PUBLISHED results, as NO pages were found.") : $this->assertFalse($results, "{$class} has NOT returned the correct PUBLISHED results, as pages were found.");
+        $isPublishedBroken
+            ? $this->assertTrue(
+                $results,
+                "{$class} has NOT returned the correct PUBLISHED results, as NO pages were found."
+            ) : $this->assertFalse(
+                $results,
+                "{$class} has NOT returned the correct PUBLISHED results, as pages were found."
+            );
    }

    public function testRecentlyEdited()
@ -81,18 +98,14 @@ class CmsReportsTest extends SapphireTest
    /**
     *  Test the broken links side report.
     */
-
    public function testBrokenLinks()
    {
-
        // Create a "draft" page with a broken link.
-
-        $page = Page::create();
+        $page = new SiteTree();
        $page->Content = "<a href='[sitetree_link,id=987654321]'>This</a> is a broken link.";
        $page->writeToStage('Stage');

        // Retrieve the broken links side report.
-
        $reports = Report::get_reports();
        $brokenLinksReport = null;
        foreach ($reports as $report) {
@ -109,12 +122,11 @@ class CmsReportsTest extends SapphireTest
        }

        // ASSERT that the "draft" report has detected the page having a broken link.
-        // ASSERT that the "published" report has NOT detected the page having a broken link, as the page has not been "published" yet.
-
+        // ASSERT that the "published" report has NOT detected the page having a broken link,
+        // as the page has not been "published" yet.
        $this->isReportBroken($brokenLinksReport, true, false);

        // Make sure the page is now "published".
-
        $page->writeToStage('Live');

        // ASSERT that the "draft" report has detected the page having a broken link.
@ -123,17 +135,15 @@ class CmsReportsTest extends SapphireTest
        $this->isReportBroken($brokenLinksReport, true, true);

        // Correct the "draft" broken link.
-
        $page->Content = str_replace('987654321', $page->ID ?? '', $page->Content ?? '');
        $page->writeToStage('Stage');

        // ASSERT that the "draft" report has NOT detected the page having a broken link.
-        // ASSERT that the "published" report has detected the page having a broken link, as the previous content remains "published".
-
+        // ASSERT that the "published" report has detected the page having a broken link,
+        // as the previous content remains "published".
        $this->isReportBroken($brokenLinksReport, false, true);

        // Make sure the change has now been "published".
-
        $page->writeToStage('Live');

        // ASSERT that the "draft" report has NOT detected the page having a broken link.
@ -145,18 +155,14 @@ class CmsReportsTest extends SapphireTest
    /**
     *  Test the broken files side report.
     */
-
    public function testBrokenFiles()
    {
-
        // Create a "draft" page with a broken file.
-
-        $page = Page::create();
+        $page = new SiteTree();
        $page->Content = "<a href='[file_link,id=987654321]'>This</a> is a broken file.";
        $page->writeToStage('Stage');

        // Retrieve the broken files side report.
-
        $reports = Report::get_reports();
        $brokenFilesReport = null;
        foreach ($reports as $report) {
@ -173,21 +179,18 @@ class CmsReportsTest extends SapphireTest
        }

        // ASSERT that the "draft" report has detected the page having a broken file.
-        // ASSERT that the "published" report has NOT detected the page having a broken file, as the page has not been "published" yet.
-
+        // ASSERT that the "published" report has NOT detected the page having a broken file,
+        // as the page has not been "published" yet.
        $this->isReportBroken($brokenFilesReport, true, false);

        // Make sure the page is now "published".
-
        $page->writeToStage('Live');

        // ASSERT that the "draft" report has detected the page having a broken file.
        // ASSERT that the "published" report has detected the page having a broken file.
-
        $this->isReportBroken($brokenFilesReport, true, true);

        // Correct the "draft" broken file.
-
        $file = File::create();
        $file->Filename = 'name.pdf';
        $file->write();
@ -195,17 +198,15 @@ class CmsReportsTest extends SapphireTest
        $page->writeToStage('Stage');

        // ASSERT that the "draft" report has NOT detected the page having a broken file.
-        // ASSERT that the "published" report has detected the page having a broken file, as the previous content remains "published".
-
+        // ASSERT that the "published" report has detected the page having a broken file,
+        // as the previous content remains "published".
        $this->isReportBroken($brokenFilesReport, false, true);

        // Make sure the change has now been "published".
-
        $page->writeToStage('Live');

        // ASSERT that the "draft" report has NOT detected the page having a broken file.
        // ASSERT that the "published" report has NOT detected the page having a broken file.
-
        $this->isReportBroken($brokenFilesReport, false, false);
    }

@ -215,15 +216,12 @@ class CmsReportsTest extends SapphireTest

    public function testBrokenVirtualPages()
    {
-
        // Create a "draft" virtual page with a broken link.
-
        $page = VirtualPage::create();
        $page->CopyContentFromID = 987654321;
        $page->writeToStage('Stage');

        // Retrieve the broken virtual pages side report.
-
        $reports = Report::get_reports();
        $brokenVirtualPagesReport = null;
        foreach ($reports as $report) {
@ -240,22 +238,19 @@ class CmsReportsTest extends SapphireTest
        }

        // ASSERT that the "draft" report has detected the page having a broken link.
-        // ASSERT that the "published" report has NOT detected the page having a broken link, as the page has not been "published" yet.
-
+        // ASSERT that the "published" report has NOT detected the page having a broken link,
+        // as the page has not been "published" yet.
        $this->isReportBroken($brokenVirtualPagesReport, true, false);

        // Make sure the page is now "published".
-
        $page->writeToStage('Live');

        // ASSERT that the "draft" report has detected the page having a broken link.
        // ASSERT that the "published" report has detected the page having a broken link.
-
        $this->isReportBroken($brokenVirtualPagesReport, true, true);

        // Correct the "draft" broken link.
-
-        $contentPage = Page::create();
+        $contentPage = new SiteTree();
        $contentPage->Content = 'This is some content.';
        $contentPage->writeToStage('Stage');
        $contentPage->writeToStage('Live');
@ -263,36 +258,30 @@ class CmsReportsTest extends SapphireTest
        $page->writeToStage('Stage');

        // ASSERT that the "draft" report has NOT detected the page having a broken link.
-        // ASSERT that the "published" report has detected the page having a broken link, as the previous content remains "published".
-
+        // ASSERT that the "published" report has detected the page having a broken link,
+        // as the previous content remains "published".
        $this->isReportBroken($brokenVirtualPagesReport, false, true);

        // Make sure the change has now been "published".
-
        $page->writeToStage('Live');

        // ASSERT that the "draft" report has NOT detected the page having a broken link.
        // ASSERT that the "published" report has NOT detected the page having a broken link.
-
        $this->isReportBroken($brokenVirtualPagesReport, false, false);
    }

    /**
     *  Test the broken redirector pages side report.
     */
-
    public function testBrokenRedirectorPages()
    {
-
        // Create a "draft" redirector page with a broken link.
-
        $page = RedirectorPage::create();
        $page->RedirectionType = 'Internal';
        $page->LinkToID = 987654321;
        $page->writeToStage('Stage');

        // Retrieve the broken redirector pages side report.
-
        $reports = Report::get_reports();
        $brokenRedirectorPagesReport = null;
        foreach ($reports as $report) {
@ -309,22 +298,19 @@ class CmsReportsTest extends SapphireTest
        }

        // ASSERT that the "draft" report has detected the page having a broken link.
-        // ASSERT that the "published" report has NOT detected the page having a broken link, as the page has not been "published" yet.
-
+        // ASSERT that the "published" report has NOT detected the page having a broken link,
+        // as the page has not been "published" yet.
        $this->isReportBroken($brokenRedirectorPagesReport, true, false);

        // Make sure the page is now "published".
-
        $page->writeToStage('Live');

        // ASSERT that the "draft" report has detected the page having a broken link.
        // ASSERT that the "published" report has detected the page having a broken link.
-
        $this->isReportBroken($brokenRedirectorPagesReport, true, true);

        // Correct the "draft" broken link.
-
-        $contentPage = Page::create();
+        $contentPage = new SiteTree();
        $contentPage->Content = 'This is some content.';
        $contentPage->writeToStage('Stage');
        $contentPage->writeToStage('Live');
@ -332,17 +318,15 @@ class CmsReportsTest extends SapphireTest
        $page->writeToStage('Stage');

        // ASSERT that the "draft" report has NOT detected the page having a broken link.
-        // ASSERT that the "published" report has detected the page having a broken link, as the previous content remains "published".
-
+        // ASSERT that the "published" report has detected the page having a broken link,
+        // as the previous content remains "published".
        $this->isReportBroken($brokenRedirectorPagesReport, false, true);

        // Make sure the change has now been "published".
-
        $page->writeToStage('Live');

        // ASSERT that the "draft" report has NOT detected the page having a broken link.
        // ASSERT that the "published" report has NOT detected the page having a broken link.
-
        $this->isReportBroken($brokenRedirectorPagesReport, false, false);
    }
 }
--- a/tests/php/Search/CMSMainSearchFormTest.php
+++ b/tests/php/Search/CMSMainSearchFormTest.php
@ -20,7 +20,7 @@ class CMSMainSearchFormTest extends FunctionalTest
                'q' => [
                    'Term' => 'Page 10',
                    'FilterClass' => CMSSiteTreeFilter_Search::class,
-                ]
+                ],
            ])
        );

--- a/tests/php/Search/ZZZSearchFormTest.php
+++ b/tests/php/Search/ZZZSearchFormTest.php
@ -2,7 +2,6 @@

 namespace SilverStripe\CMS\Tests\Search;

-use Page;
 use SilverStripe\Assets\File;
 use SilverStripe\CMS\Controllers\ContentController;
 use SilverStripe\CMS\Controllers\ModelAsController;
@ -29,7 +28,6 @@ use TractorCow\Fluent\Extension\FluentSiteTreeExtension;
 */
 class ZZZSearchFormTest extends FunctionalTest
 {
-
    protected static $fixture_file = 'ZZZSearchFormTest.yml';

    protected static $illegal_extensions = [
@ -97,9 +95,6 @@ class ZZZSearchFormTest extends FunctionalTest
        return $supports;
    }

-    /**
-     * @skipUpgrade
-     */
    public function testSearchFormTemplateCanBeChanged()
    {
        if (!$this->checkFulltextSupport()) {
@ -116,9 +111,6 @@ class ZZZSearchFormTest extends FunctionalTest
        );
    }

-    /**
-     * @skipUpgrade
-     */
    public function testPublishedPagesMatchedByTitle()
    {
        if (!$this->checkFulltextSupport()) {
@ -149,9 +141,6 @@ class ZZZSearchFormTest extends FunctionalTest
        );
    }

-    /**
-     * @skipUpgrade
-     */
    public function testDoubleQuotesPublishedPagesMatchedByTitle()
    {
        if (!$this->checkFulltextSupport()) {
@ -184,9 +173,6 @@ class ZZZSearchFormTest extends FunctionalTest
        );
    }

-    /**
-     * @skipUpgrade
-     */
    public function testUnpublishedPagesNotIncluded()
    {
        if (!$this->checkFulltextSupport()) {
--- a/tests/php/Tasks/MigrateSiteTreeLinkingTaskTest.php
+++ b/tests/php/Tasks/MigrateSiteTreeLinkingTaskTest.php
@ -1,91 +0,0 @@
-<?php
-
-namespace SilverStripe\CMS\Tests\Tasks;
-
-use SilverStripe\CMS\Model\SiteTree;
-use SilverStripe\CMS\Tasks\MigrateSiteTreeLinkingTask;
-use SilverStripe\Dev\SapphireTest;
-use SilverStripe\ORM\DataObject;
-use SilverStripe\ORM\DB;
-use SilverStripe\Dev\Deprecation;
-
-class MigrateSiteTreeLinkingTaskTest extends SapphireTest
-{
-    protected static $fixture_file = 'MigrateSiteTreeLinkingTaskTest.yml';
-
-    public static function setUpBeforeClass(): void
-    {
-        parent::setUpBeforeClass();
-
-        // Cover db reset in case parent did not start
-        if (!static::getExtraDataObjects()) {
-            DataObject::reset();
-            static::resetDBSchema(true, true);
-        }
-
-        // Ensure legacy SiteTree_LinkTracking table exists
-        DB::get_schema()->schemaUpdate(function () {
-            DB::require_table('SiteTree_LinkTracking', [
-                'SiteTreeID' => 'Int',
-                'ChildID' => 'Int',
-                'FieldName' => 'Varchar',
-            ]);
-        });
-    }
-
-    protected function setUp(): void
-    {
-        if (Deprecation::isEnabled()) {
-            $this->markTestSkipped('Test calls deprecated code');
-        }
-        parent::setUp();
-
-        // Manually bootstrap all Content blocks with soft coded IDs (raw sql to avoid save hooks)
-        $replacements = [
-            '$$ABOUTID$$' => $this->idFromFixture(SiteTree::class, 'about'),
-            '$$HOMEID$$' => $this->idFromFixture(SiteTree::class, 'home'),
-            '$$STAFFID$$' => $this->idFromFixture(SiteTree::class, 'staff'),
-        ];
-        foreach (DB::query('SELECT "ID", "Content" FROM "SiteTree"') as $row) {
-            $id = (int)$row['ID'];
-            $content = str_replace(array_keys($replacements ?? []), array_values($replacements ?? []), $row['Content'] ?? '');
-            DB::prepared_query('UPDATE "SiteTree" SET "Content" = ? WHERE "ID" = ?', [$content, $id]);
-        }
-        DataObject::reset();
-    }
-
-    public function testLinkingMigration()
-    {
-        ob_start();
-
-        DB::quiet(false);
-        $task = new MigrateSiteTreeLinkingTask();
-        $task->run(null);
-        $this->assertStringContainsString(
-            "Migrated page links on 5 Pages",
-            ob_get_contents(),
-            'Rewritten links are correctly reported'
-        );
-        DB::quiet(true);
-        ob_end_clean();
-
-        // Query links for pages
-        /** @var SiteTree $home */
-        $home = $this->objFromFixture(SiteTree::class, 'home');
-        /** @var SiteTree $about */
-        $about  = $this->objFromFixture(SiteTree::class, 'about');
-        /** @var SiteTree $staff */
-        $staff  = $this->objFromFixture(SiteTree::class, 'staff');
-        /** @var SiteTree $action */
-        $action = $this->objFromFixture(SiteTree::class, 'action');
-        /** @var SiteTree $hash */
-        $hash = $this->objFromFixture(SiteTree::class, 'hash_link');
-
-        // Ensure all links are created
-        $this->assertListEquals([['ID' => $about->ID], ['ID' => $staff->ID]], $home->LinkTracking());
-        $this->assertListEquals([['ID' => $home->ID], ['ID' => $staff->ID]], $about->LinkTracking());
-        $this->assertListEquals([['ID' => $home->ID], ['ID' => $about->ID]], $staff->LinkTracking());
-        $this->assertListEquals([['ID' => $home->ID]], $action->LinkTracking());
-        $this->assertListEquals([['ID' => $home->ID], ['ID' => $about->ID]], $hash->LinkTracking());
-    }
-}
--- a/tests/php/Tasks/MigrateSiteTreeLinkingTaskTest.yml
+++ b/tests/php/Tasks/MigrateSiteTreeLinkingTaskTest.yml
@ -1,67 +0,0 @@
-SilverStripe\CMS\Model\SiteTree:
-  home:
-    Title: Home Page
-    URLSegment: home
-    Content: '<a href="[sitetree_link,id=$$ABOUTID$$]">About</a><a href="[sitetree_link,id=$$STAFFID$$]">Staff</a><a href="http://silverstripe.org/">External Link</a><a name="anchor"></a>'
-  about:
-    Title: About Us
-    URLSegment: about
-    Content: '<a href="[sitetree_link,id=$$HOMEID$$]">Home</a><a href="[sitetree_link,id=$$STAFFID$$]">Staff</a><a name="second-anchor"></a>'
-  staff:
-    Title: Staff
-    URLSegment: staff
-    Content: '<a href="[sitetree_link,id=$$HOMEID$$]">Home</a><a href="[sitetree_link,id=$$ABOUTID$$]">About</a>'
-    Parent: =>SilverStripe\CMS\Model\SiteTree.about
-  action:
-    Title: Action Link
-    URLSegment: action
-    Content: '<a href="[sitetree_link,id=$$HOMEID$$]SearchForm">Search Form</a>'
-  hash_link:
-    Title: Hash Link
-    URLSegment: hash-link
-    Content: '<a href="[sitetree_link,id=$$HOMEID$$]#anchor">Home</a><a href="[sitetree_link,id=$$ABOUTID$$]#second-anchor">About</a>'
-  admin_link:
-    Title: Admin Link
-    URLSegment: admin-link
-    Content: '<a href="admin">Admin</a>'
-  no_links:
-    Title: No Links
-    URLSegment: No Links
-
-SiteTree_LinkTracking:
-  home_about:
-    SiteTreeID: =>SilverStripe\CMS\Model\SiteTree.home
-    ChildID: =>SilverStripe\CMS\Model\SiteTree.about
-    FieldName: Content
-  home_staff:
-    SiteTreeID: =>SilverStripe\CMS\Model\SiteTree.home
-    ChildID: =>SilverStripe\CMS\Model\SiteTree.staff
-    FieldName: Content
-  about_home:
-    SiteTreeID: =>SilverStripe\CMS\Model\SiteTree.about
-    ChildID: =>SilverStripe\CMS\Model\SiteTree.home
-    FieldName: Content
-  about_staff:
-    SiteTreeID: =>SilverStripe\CMS\Model\SiteTree.about
-    ChildID: =>SilverStripe\CMS\Model\SiteTree.staff
-    FieldName: Content
-  staff_home:
-    SiteTreeID: =>SilverStripe\CMS\Model\SiteTree.staff
-    ChildID: =>SilverStripe\CMS\Model\SiteTree.home
-    FieldName: Content
-  staff_about:
-    SiteTreeID: =>SilverStripe\CMS\Model\SiteTree.staff
-    ChildID: =>SilverStripe\CMS\Model\SiteTree.about
-    FieldName: Content
-  action_home:
-    SiteTreeID: =>SilverStripe\CMS\Model\SiteTree.action
-    ChildID: =>SilverStripe\CMS\Model\SiteTree.home
-    FieldName: Content
-  hash_link_home:
-    SiteTreeID: =>SilverStripe\CMS\Model\SiteTree.hash_link
-    ChildID: =>SilverStripe\CMS\Model\SiteTree.home
-    FieldName: Content
-  hash_link_about:
-    SiteTreeID: =>SilverStripe\CMS\Model\SiteTree.hash_link
-    ChildID: =>SilverStripe\CMS\Model\SiteTree.about
-    FieldName: Content
--- a/tests/php/Tasks/RemoveOrphanedPagesTaskTest.php
+++ b/tests/php/Tasks/RemoveOrphanedPagesTaskTest.php
@ -1,113 +0,0 @@
-<?php
-
-namespace SilverStripe\CMS\Tests\Tasks;
-
-use SilverStripe\CMS\Tasks\RemoveOrphanedPagesTask;
-use SilverStripe\Versioned\Versioned;
-use SilverStripe\Dev\FunctionalTest;
-use SilverStripe\Dev\Deprecation;
-
-/**
- * <h2>Fixture tree</h2>
- * <code>
- * parent1_published
- *   child1_1_published
- *     grandchild1_1_1
- *     grandchild1_1_2_published
- *     grandchild1_1_3_orphaned
- *     grandchild1_1_4_orphaned_published
- *   child1_2_published
- *   child1_3_orphaned
- *   child1_4_orphaned_published
- * parent2
- *   child2_1_published_orphaned // is orphaned because parent is not published
- * </code>
- *
- * <h2>Cleaned up tree</h2>
- * <code>
- * parent1_published
- *   child1_1_published
- *     grandchild1_1_1
- *     grandchild1_1_2_published
- *   child2_1_published_orphaned
- * parent2
- * </code>
- *
- * @author Ingo Schommer (<firstname>@silverstripe.com), SilverStripe Ltd.
- */
-class RemoveOrphanedPagesTaskTest extends FunctionalTest
-{
-    protected static $fixture_file = 'RemoveOrphanedPagesTaskTest.yml';
-
-    protected function setUp(): void
-    {
-        if (Deprecation::isEnabled()) {
-            $this->markTestSkipped('Test calls deprecated code');
-        }
-        parent::setUp();
-
-        $parent1_published = $this->objFromFixture('Page', 'parent1_published');
-        $parent1_published->publishSingle();
-
-        $child1_1_published = $this->objFromFixture('Page', 'child1_1_published');
-        $child1_1_published->publishSingle();
-
-        $child1_2_published = $this->objFromFixture('Page', 'child1_2_published');
-        $child1_2_published->publishSingle();
-
-        $child1_3_orphaned = $this->objFromFixture('Page', 'child1_3_orphaned');
-        $child1_3_orphaned->ParentID = 9999;
-        $child1_3_orphaned->write();
-
-        $child1_4_orphaned_published = $this->objFromFixture('Page', 'child1_4_orphaned_published');
-        $child1_4_orphaned_published->ParentID = 9999;
-        $child1_4_orphaned_published->write();
-        $child1_4_orphaned_published->publishSingle();
-
-        $grandchild1_1_2_published = $this->objFromFixture('Page', 'grandchild1_1_2_published');
-        $grandchild1_1_2_published->publishSingle();
-
-        $grandchild1_1_3_orphaned = $this->objFromFixture('Page', 'grandchild1_1_3_orphaned');
-        $grandchild1_1_3_orphaned->ParentID = 9999;
-        $grandchild1_1_3_orphaned->write();
-
-        $grandchild1_1_4_orphaned_published = $this->objFromFixture(
-            'Page',
-            'grandchild1_1_4_orphaned_published'
-        );
-        $grandchild1_1_4_orphaned_published->ParentID = 9999;
-        $grandchild1_1_4_orphaned_published->write();
-        $grandchild1_1_4_orphaned_published->publishSingle();
-
-        $child2_1_published_orphaned = $this->objFromFixture('Page', 'child2_1_published_orphaned');
-        $child2_1_published_orphaned->publishSingle();
-    }
-
-    public function testGetOrphansByStage()
-    {
-        // all orphans
-        $child1_3_orphaned = $this->objFromFixture('Page', 'child1_3_orphaned');
-        $child1_4_orphaned_published = $this->objFromFixture('Page', 'child1_4_orphaned_published');
-        $grandchild1_1_3_orphaned = $this->objFromFixture('Page', 'grandchild1_1_3_orphaned');
-        $grandchild1_1_4_orphaned_published = $this->objFromFixture(
-            'Page',
-            'grandchild1_1_4_orphaned_published'
-        );
-        $child2_1_published_orphaned = $this->objFromFixture('Page', 'child2_1_published_orphaned');
-
-        $task = singleton(RemoveOrphanedPagesTask::class);
-        $orphans = $task->getOrphanedPages();
-        $orphanIDs = $orphans->column('ID');
-        sort($orphanIDs);
-        $compareIDs = [
-            $child1_3_orphaned->ID,
-            $child1_4_orphaned_published->ID,
-            $grandchild1_1_3_orphaned->ID,
-            $grandchild1_1_4_orphaned_published->ID,
-            $child2_1_published_orphaned->ID
-        ];
-        sort($compareIDs);
-
-        $this->assertEquals($orphanIDs, $compareIDs);
-    }
-}
--- a/tests/php/Tasks/RemoveOrphanedPagesTaskTest.yml
+++ b/tests/php/Tasks/RemoveOrphanedPagesTaskTest.yml
@ -1,32 +0,0 @@
-Page:
-  parent1_published:
-    Title: Parent1
-  child1_1_published:
-    Title: Child1.1
-    Parent: =>Page.parent1_published
-  child1_2_published:
-    Title: Child1.2
-    Parent: =>Page.parent1_published
-  child1_3_orphaned:
-    Title: Child1.3
-    Parent: =>Page.parent1_published
-  child1_4_orphaned_published:
-    Title: Child1.4
-    Parent: =>Page.parent1_published
-  grandchild1_1_1:
-    Title: Grandchild1.1.1
-    Parent: =>Page.child1_1_published
-  grandchild1_1_2_published:
-    Title: Grandchild1.1.2
-    Parent: =>Page.child1_1_published
-  grandchild1_1_3_orphaned:
-    Title: Grandchild1.1.3
-    Parent: =>Page.child1_1_published
-  grandchild1_1_4_orphaned_published:
-    Title: Grandchild1.1.4
-    Parent: =>Page.child1_1_published
-  parent2:
-    Title: Parent2
-  child2_1_published_orphaned:
-    Title: Child2.1
-    Parent: =>Page.parent2
--- a/webpack.config.js
+++ b/webpack.config.js
@ -1,19 +1,8 @@
 const Path = require('path');
-const webpackConfig = require('@silverstripe/webpack-config');
+const { JavascriptWebpackConfig, CssWebpackConfig } = require('@silverstripe/webpack-config');
 const CopyWebpackPlugin = require('copy-webpack-plugin');
-const {
-  resolveJS,
-  externalJS,
-  moduleJS,
-  pluginJS,
-  moduleCSS,
-  pluginCSS,
-} = webpackConfig;

-const ENV = process.env.NODE_ENV;
 const PATHS = {
-  MODULES: 'node_modules',
-  FILES_PATH: '../',
  ROOT: Path.resolve(),
  SRC: Path.resolve('client/src'),
  DIST: Path.resolve('client/dist'),
@ -21,46 +10,37 @@ const PATHS = {
 };

 const config = [
-  {
-    name: 'js',
-    entry: {
+  // Main JS bundles
+  new JavascriptWebpackConfig('js', PATHS, 'silverstripe/cms')
+    .setEntry({
      bundle: `${PATHS.SRC}/bundles/bundle.js`,
-      // See https://github.com/webpack/webpack/issues/300#issuecomment-45313650
      SilverStripeNavigator: `${PATHS.LEGACY_SRC}/SilverStripeNavigator.js`,
      'TinyMCE_sslink-internal': `${PATHS.LEGACY_SRC}/TinyMCE_sslink-internal.js`,
      'TinyMCE_sslink-anchor': `${PATHS.LEGACY_SRC}/TinyMCE_sslink-anchor.js`,
-    },
-    output: {
-      path: PATHS.DIST,
-      filename: 'js/[name].js',
-    },
-    devtool: (ENV !== 'production') ? 'source-map' : '',
-    resolve: resolveJS(ENV, PATHS),
-    externals: externalJS(ENV, PATHS),
-    module: moduleJS(ENV, PATHS),
-    plugins: pluginJS(ENV, PATHS).concat([
-      new CopyWebpackPlugin([
-        { from: 'client/src/images', to: 'images' },
-      ])
-    ])
-  },
-  {
-    name: 'css',
-    entry: {
+    })
+    .mergeConfig({
+      plugins: [
+        new CopyWebpackPlugin({
+          patterns: [
+            {
+              from: `${PATHS.SRC}/images`,
+              to: `${PATHS.DIST}/images`
+            },
+          ]
+        }),
+      ],
+    })
+    .getConfig(),
+  // sass to css
+  new CssWebpackConfig('css', PATHS)
+    .setEntry({
      bundle: `${PATHS.SRC}/styles/bundle.scss`,
      SilverStripeNavigator: `${PATHS.SRC}/styles/SilverStripeNavigator.scss`,
-    },
-    output: {
-      path: PATHS.DIST,
-      filename: 'styles/[name].css',
-    },
-    devtool: (ENV !== 'production') ? 'source-map' : '',
-    module: moduleCSS(ENV, PATHS),
-    plugins: pluginCSS(ENV, PATHS),
-  },
+    })
+    .getConfig(),
 ];

 // Use WEBPACK_CHILD=js or WEBPACK_CHILD=css env var to run a single config
 module.exports = (process.env.WEBPACK_CHILD)
  ? config.find((entry) => entry.name === process.env.WEBPACK_CHILD)
-  : module.exports = config;
+  : config;
--- a/yarn.lock
+++ b/yarn.lock
Author	SHA1	Message	Date
github-actions	7427f615de	Merge branch '4' into 5.0	2023-09-23 13:23:31 +00:00
Guy Sartorelli	6259ca30ad	Merge branch '4' into 5.0 # Conflicts: # client/dist/js/TinyMCE_sslink-anchor.js # client/dist/js/TinyMCE_sslink-internal.js # composer.json # tests/behat/features/insert-a-link.feature # tests/behat/features/insert-anchor-link.feature	2023-09-18 11:10:29 +12:00
Guy Sartorelli	4a92f5eb64	FIX Allow wrapping an image in a link (#2884 )	2023-09-11 12:33:00 +12:00
Steve Boyd	7e42058206	Merge branch '4' into 5.0	2023-09-05 15:19:35 +12:00
Guy Sartorelli	d11915cffd	Merge pull request #2876 from creative-commoners/pulls/5.0/module-standardiser-1693278538 MNT Run module-standardiser	2023-08-29 17:08:18 +12:00
Steve Boyd	57c5dcbebb	MNT Run module-standardiser	2023-08-29 15:08:58 +12:00
github-actions	b8e30925e8	Merge branch '4' into 5.0	2023-08-26 13:23:33 +00:00
github-actions	461cab09a0	Merge branch '4' into 5.0	2023-08-19 13:23:55 +00:00
Steve Boyd	b44ceb95ed	Merge branch '4' into 5.0	2023-06-16 11:40:00 +12:00
Steve Boyd	1f2bf0a8a7	Merge branch '4' into 5.0	2023-05-31 14:40:54 +12:00
Steve Boyd	984cf404f4	Merge branch '4' into 5.0	2023-05-31 11:26:36 +12:00
Steve Boyd	989bb7944a	Merge branch '4.13' into 4	2023-05-31 11:24:51 +12:00
Guy Sartorelli	81e7e1a01b	Merge pull request #2849 from creative-commoners/pulls/5.0/react-testing-library MNT Use React Testing Library	2023-05-01 17:48:45 +12:00
Steve Boyd	28ecbdc845	MNT Use React Testing Library	2023-04-28 10:48:47 +12:00
Guy Sartorelli	ca837d6ccd	Merge branch '4' into 5.0	2023-04-27 14:44:59 +12:00
Sabina Talipova	6675f50f81	Merge pull request #2850 from creative-commoners/pulls/5.0/cms5-readme DOC Update README.md for CMS 5	2023-04-21 15:29:11 +12:00
Guy Sartorelli	cfc48fad0a	DOC Update README.md for CMS 5	2023-04-19 17:38:49 +12:00
Maxime Rainville	0b50824e46	Merge pull request #2847 from creative-commoners/pulls/5.0/devjs MNT Update dev JS	2023-04-03 15:32:17 +12:00
Steve Boyd	b1efcc217d	MNT Update dev JS	2023-04-03 14:30:30 +12:00
Steve Boyd	f2d745afec	Merge branch '4' into 5.0	2023-03-30 13:28:53 +13:00
Steve Boyd	f705df4b0c	Merge branch '4' into 5.0	2023-03-08 12:22:34 +13:00
Steve Boyd	7fe9a04112	Merge branch '4' into 5.0	2023-03-02 16:22:11 +13:00
Guy Sartorelli	3f1dbe4d3f	Merge pull request #2836 from creative-commoners/pulls/5.0/fix-broken-builds FIX Replace Diff class with HtmlDiff	2023-02-14 18:55:21 +13:00
Guy Sartorelli	abf00ede95	MNT Get JS tests passing again (#2834 )	2023-02-13 15:20:56 +13:00
Sabina Talipova	93f57d2300	FIX Replace Diff class with HtmlDiff	2023-02-09 10:32:25 +13:00
Steve Boyd	222972c687	Merge branch '4' into 5	2023-02-02 16:34:19 +13:00
Guy Sartorelli	b02beba7ba	Resolve a couple of behat issues (#2830 ) * FIX Correctly add message to reactstrap-confirm * MNT Fix behat tests	2023-01-30 10:32:26 +13:00
Maxime Rainville	081eea42c5	Merge pull request #2824 from creative-commoners/pulls/5/remove-legacy-upgrader MNT Remove legacy upgrader config	2023-01-23 10:36:04 +13:00
Steve Boyd	30685c9227	MNT Remove legacy upgrader config	2023-01-20 17:13:11 +13:00
Guy Sartorelli	37af732dbf	Merge pull request #2771 from xini/fix-5-remove-trailing-slash-from-sitetree-links SS5: Remove trailing slash from SiteTree links if no action present	2023-01-20 15:46:39 +13:00
Florian Thoma	18cb6d499d	API Normalise trailing slashes in links	2023-01-20 15:08:37 +13:00
Maxime Rainville	2b0374e692	Merge pull request #2823 from creative-commoners/pulls/5/broken-builds MNT Broken builds	2023-01-20 14:53:28 +13:00
Steve Boyd	f362d8b129	MNT Broken builds	2023-01-19 16:54:57 +13:00
Guy Sartorelli	9bb6f700b4	Merge pull request #2820 from creative-commoners/pulls/5/remove-translatable ENH Remove unused Translatable code	2023-01-19 09:05:03 +13:00
Maxime Rainville	69fabe9a34	Merge pull request #2818 from creative-commoners/pulls/5/remove-legacy-tasks API Remove legacy tasks	2023-01-18 14:22:01 +13:00
Steve Boyd	b57d557bc7	ENH Remove unused Translatable code	2023-01-18 14:07:39 +13:00
Maxime Rainville	97fdff4bb2	API Remove deprecated CMSMain::$subitem_class config (#2821 )	2023-01-18 11:06:45 +13:00
Maxime Rainville	50cefa6d14	Merge branch '4' into 5	2023-01-17 22:35:51 +13:00
Steve Boyd	1bd578fc96	API Remove legacy tasks	2023-01-17 12:31:51 +13:00
Guy Sartorelli	61d729285f	Merge pull request #2814 from creative-commoners/pulls/5/lint MNT Add yarn lint back in	2023-01-13 15:40:31 +13:00
Steve Boyd	a44547915d	MNT Add yarn lint back in	2023-01-13 15:17:54 +13:00
Maxime Rainville	e7d9d1b36e	Merge pull request #2813 from creative-commoners/pulls/5/fix-behat2 Fix anchor select field component	2023-01-11 17:53:01 +13:00
Maxime Rainville	3c7459208e	Merge pull request #2811 from creative-commoners/pulls/5/fix-behat MNT Fix behat test for inserting WYSIWYG links	2023-01-11 17:17:31 +13:00
Guy Sartorelli	ef4122da04	ENH Use the EmotionCssCacheProvider component This ensures we can override the react-select CSS if we need to.	2023-01-11 16:06:36 +13:00
Guy Sartorelli	b9115f3f6d	Fix anchor select field component This should have been done when we upgraded react-select. My bad.	2023-01-10 12:34:13 +13:00
Guy Sartorelli	dd79cf5a23	MNT Fix behat test for inserting WYSIWYG links The selectors for TreeDropdownField's markup changed when we updated react-select.	2023-01-09 13:01:49 +13:00
Guy Sartorelli	cba1acb88e	Merge pull request #2809 from creative-commoners/pulls/5/remove-silverstripe-version-file MNT Remove silverstripe_version file	2022-12-20 12:11:47 +13:00
Guy Sartorelli	bd42008584	MNT Remove silverstripe_version file This file hasn't been updated since 2012 and was only referenced in the now-removed `SilverStripe\Dev\SapphireInfo` class.	2022-12-20 11:35:45 +13:00
Guy Sartorelli	5e843d2619	DEP Upgrade build stack (#2795 ) * DEP Upgrade webpack config and various deps * DEP Update code to work with upgraded libraries * MNT run yarn build	2022-12-19 10:21:10 +13:00
Guy Sartorelli	ddbe4ea4ce	DEP Upgrade build stack (#2795 ) * DEP Upgrade webpack config and various deps * DEP Update code to work with upgraded libraries * MNT run yarn build	2022-12-19 10:20:52 +13:00
Guy Sartorelli	145f063c33	Merge branch '4' into 5	2022-12-14 15:22:01 +13:00
Guy Sartorelli	03bac4b72d	Merge pull request #2806 from creative-commoners/pulls/5/absolute-link FIX Cast absoluteUrl() argument to string	2022-12-13 16:27:07 +13:00
Steve Boyd	605daf5026	FIX Cast absoluteUrl() argument to string	2022-12-09 10:02:43 +13:00
Sabina Talipova	0e5428b78b	API Remove deprecated code (#2800 )	2022-12-08 10:44:36 +13:00
Guy Sartorelli	8b1433b263	Merge pull request #2804 from creative-commoners/pulls/5/sortraw FIX Use orderBy() instead of sort()	2022-12-07 14:53:18 +13:00
Steve Boyd	3186e0e129	FIX Use orderBy() instead of sort()	2022-12-05 17:46:44 +13:00
Guy Sartorelli	911a71d6f6	Merge branch '4' into '5'	2022-11-21 18:07:57 +13:00
Guy Sartorelli	003f9ba750	Revert "Merge branch '4' into 5" This reverts commit `2d10a624b3`, reversing changes made to `af1a482d20`.	2022-11-21 17:11:42 +13:00
Sabina Talipova	2d10a624b3	Merge branch '4' into 5	2022-11-21 16:59:42 +13:00
Guy Sartorelli	af1a482d20	FIX Loosen config order to allow "after: '*'" in framework (#2793 )	2022-10-19 15:15:48 +13:00
Guy Sartorelli	8320023526	Merge pull request #2788 from creative-commoners/pulls/5/action-signature API Strongly-type action method signatures	2022-10-19 10:08:22 +13:00
Steve Boyd	6e19ae737f	API Strongly-type action method signatures	2022-10-18 18:21:09 +13:00
Guy Sartorelli	9b64c7de24	Merge branch '4' into 5	2022-10-13 11:18:14 +13:00
Sabina Talipova	ea9ce63438	Merge pull request #2779 from creative-commoners/pulls/5/previewable-via-extension ENH Records can be made previewable via an extension	2022-10-07 13:34:19 +13:00
Guy Sartorelli	6ff98c4201	ENH Records can be made previewable via an extension	2022-10-06 15:51:30 +13:00
Sabina Talipova	e5cea70b54	Merge pull request #2761 from creative-commoners/pulls/5/migrate-preview-bits API Migrate SilverStripeNagivator classes	2022-10-06 13:46:38 +13:00
Guy Sartorelli	d7857ebbe0	API Migrate SilverStripeNagivator classes These classes are useful with `silverstripe/admin` and `silverstripe/versioned` without needing `silverstripe/cms`.	2022-10-05 14:24:11 +13:00
Sabina Talipova	390f078551	Merge pull request #2781 from creative-commoners/pulls/5/tinymce6 FIX Fix link plugins to support tinymce6	2022-10-03 12:10:14 +13:00
Guy Sartorelli	bedd64554f	FIX Use correct tinymce selection logic	2022-09-30 18:26:13 +13:00
Guy Sartorelli	7368df8757	FIX Fix link plugins to support tinymce6	2022-09-30 15:27:38 +13:00
Guy Sartorelli	d56682509c	Merge branch '4' into 5	2022-09-02 11:01:22 +12:00
Steve Boyd	aa4ba82f38	Merge pull request #2769 from creative-commoners/pulls/5/rescue-master-remove-history-viewer API Rescue Master Branch PR: Remove deprecated CMSPageHistoryViewer	2022-09-01 14:50:58 +12:00
Guy Sartorelli	f2c4423d0c	Merge branch '4' into 5	2022-08-31 13:56:26 +12:00
Florian Thoma	1711c0c88e	API Move updateRelativeLink hook after concatination (#2770 ) * move updateRelativeLink hook after concatination to make it actually updatable * keep existing parameters the same * revert to link parameter be first * update updateRelativeLink method signature in SiteTreeExtension * don't pass old parameters by reference	2022-08-31 12:33:05 +12:00
Guy Sartorelli	adcea213a2	ENH Remove css for CMSPageHistoryController.	2022-08-30 11:14:51 +12:00
Steve Boyd	f9a19e7429	Merge pull request #2768 from creative-commoners/pulls/5/rescue-master-canberoot-check Rescue Master Branch PR: FIX Don't offer to restore to root if can_be_root is false	2022-08-29 18:07:56 +12:00
Guy Sartorelli	803b4add7b	FIX Resolve CI failure	2022-08-25 16:18:07 +12:00
Aaron Carlino	cda7857e12	API: Remove deprecated CMSPageHistoryViewer	2022-08-25 16:18:01 +12:00
Mike Cochrane	b46876b8a8	FIX Don't offer to restore to root if can_be_root is false	2022-08-25 14:18:50 +12:00
Steve Boyd	c130b55ecb	Merge pull request #2766 from creative-commoners/pulls/5/rescue-master-sitetree-not-page Rescue Master Branch PR: MNT Use SiteTree instead of Page in tests	2022-08-25 11:47:14 +12:00
Mike Cochrane	2219899c10	MNT Use SiteTree instead of Page in tests	2022-08-25 10:17:41 +12:00
Guy Sartorelli	859ff00184	Merge pull request #2763 from creative-commoners/pulls/5/other-deps DEP Update dependencies for CMS 5	2022-08-10 11:14:52 +12:00
Steve Boyd	7381de15e8	DEP Update dependencies for CMS 5	2022-08-09 17:24:39 +12:00
Guy Sartorelli	e580527111	Merge pull request #2759 from creative-commoners/pulls/5/major-deps DEP Update core dependencies for CMS 5	2022-08-09 09:41:32 +12:00
Steve Boyd	72f8e5f71d	DEP Update core dependencies for CMS 5	2022-08-04 17:36:54 +12:00