From edbe5ad069663ce10189fb7baca2a27d82920711 Mon Sep 17 00:00:00 2001
From: Maxime Rainville <maxime@silverstripe.com>
Date: Wed, 16 Sep 2020 11:05:55 +1200
Subject: [PATCH] BUG Remove old boostrap 3 CSS class

---
 code/Model/SiteTree.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/code/Model/SiteTree.php b/code/Model/SiteTree.php
index 614630f6..fef4ea9a 100755
--- a/code/Model/SiteTree.php
+++ b/code/Model/SiteTree.php
@@ -2124,7 +2124,7 @@ class SiteTree extends DataObject implements PermissionProvider, i18nEntityProvi
 
             $fields->addFieldToTab(
                 "Root.Main",
-                new LiteralField("ObsoleteWarningHeader", "<p class=\"message warning\">$obsoleteWarning</p>"),
+                LiteralField::create("ObsoleteWarningHeader", "<p class=\"alert alert-warning\">$obsoleteWarning</p>"),
                 "Title"
             );
         }