DOC Add some extra details to the changelog about toast notification and DataObject hydration (#9754)

docs/en/04_Changelogs/4.7.0.md

@@ -7,6 +7,8 @@
 - [Default MySQL collation updated](#default-mysql-collation-updated)
 - [MySQL connection mode configurable](#mysql-connection-mode-now-configurable)
 - [Flysystem dependency shifted](#flysystem-dependency-shifted)
+- [Improved Toast notifications](#improved-toast-notifications)
+- [DataObject constructor support for hydration](#dataobject-constructor-support-for-hydration)
 
 ## New features
 
@@ -76,3 +78,25 @@ An edgecase exists where a project can update to `silverstripe/framework 4.7.0`
 `silverstripe/assets 1.6.x`, and lose the Flysystem dependency entirely. The best way to avoid this
 is by ensuring you update all core modules to the new minor release at once, ideally through a core
 recipe like `silverstripe/recipe-core`.
+
+### Improved Toast notifications
+
+Toast notifications have been completely revamped
+- Toast notifications can now be triggered from React components using Redux actions
+- Actions can now be attached to the toast notifications
+- Accessibility has been improved (see the component documentation for caveats when using actions)
+
+Asset-admin has been updated to use toast notifications instead of alerts. More modules will start
+using them in future releases.
+
+[Review the Toast story in the pattern library](https://silverstripe.github.io/silverstripe-admin/?selectedKind=Admin%2FToasts&selectedStory=Single)
+to learn how and when to use the toast notifications.
+
+### DataObject constructor support for hydration
+
+Many developers wrongly assumed that the DataObject constructor could be used to "hydrate" a record
+by passing an array of value to it. While this worked in some cases, values would be run through
+setters and validation occasionally leading to inconsistencies.
+
+Silverstripe CMS Recipe 4.7 introduces improvements to the DataObject constructor to provide proper
+support for hydration.

docs/en/04_Changelogs/beta/4.7.0-beta1.md

@@ -7,6 +7,8 @@
 - [Default MySQL collation updated](#default-mysql-collation-updated)
 - [MySQL connection mode configurable](#mysql-connection-mode-now-configurable)
 - [Flysystem dependency shifted](#flysystem-dependency-shifted)
+- [Improved Toast notifications](#improved-toast-notifications)
+- [DataObject constructor support for hydration](#dataobject-constructor-support-for-hydration)
 
 ## New features
 
@@ -77,6 +79,43 @@ An edgecase exists where a project can update to `silverstripe/framework 4.7.0`
 is by ensuring you update all core modules to the new minor release at once, ideally through a core
 recipe like `silverstripe/recipe-core`.
 
+### Improved Toast notifications
+
+Toast notifications have been completely revamped
+- Toast notifications can now be triggered from React components using Redux actions
+- Actions can now be attached to the toast notifications
+- Accessibility has been improved (see the component documentation for caveats when using actions)
+
+Asset-admin has been updated to use toast notifications instead of alerts. More modules will start
+using them in future releases.
+
+[Review the Toast story in the pattern library](https://silverstripe.github.io/silverstripe-admin/?selectedKind=Admin%2FToasts&selectedStory=Single)
+to learn how and when to use the toast notifications.
+
+### DataObject constructor support for hydration
+
+Many developers wrongly assumed that the DataObject constructor could be used to "hydrate" a record
+by passing an array of value to it. While this worked in some cases, values would be run through
+setters and validation occasionally leading to inconsistencies.
+
+Silverstripe CMS Recipe 4.7 introduces improvements to the DataObject constructor to provide proper
+support for hydration.
+
+```php
+// Default behavior. Setters and validation will be applied to the provided data.
+// Equivalent to `Foo::create(['Title' => 'Bar'])` 
+$newFoo = Foo::create(['Title' => 'Bar'], DataObject::CREATE_OBJECT);
+
+// Creates a "singleton" instance. The provided data will be ignored.
+// Equivalent to `Foo::singleton()`
+$newFoo = Foo::create(['Title' => 'Bar'], DataObject::CREATE_SINGLETON);
+
+// Hydrate the record with data  manually retrieved from the database. The provided 
+// data is stored directly in the DataObject without going through setters or validation.
+// This was not possible prior to the the 4.7 release.
+$newFoo = Foo::create(['Title' => 'Bar', 'ID' => 123], DataObject::CREATE_HYDRATED);
+```
+
 ## Change Log
 
 ### API Changes