diff --git a/upgrade/breaking-changes/12-0-0.md b/upgrade/breaking-changes/12-0-0.md
new file mode 100644
index 000000000..0c3cc00d7
--- /dev/null
+++ b/upgrade/breaking-changes/12-0-0.md
@@ -0,0 +1,25 @@
+---
+title: 12.0.0
+description: Handle the changes in the 12.0.0 release of the Telerik UI for Blazor components.
+page_title: Breaking Changes in 12.0.0
+slug: changes-in-12-0-0
+position: 950
+---
+
+# Breaking Changes in 12.0.0
+
+## Chat
+
+The `MessageTemplate` parameter is renamed to `MessageContentTemplate`. `MessageTemplate` is still a valid template, but is used to replace the whole message bubble element.
+
+## Filter
+
+The `TelerikFilter.ValueChanged` event is now deprecated. Use the [`OnUpdate` event](slug:filter-events#onupdate) instead.
+
+## Pager
+
+The `TelerikPager.Adaptive` parameter is now deprecated. Use the [`Responsive` parameter](https://www.telerik.com/blazor-ui/documentation/api/telerik.blazor.components.telerikpager#telerik_blazor_components_telerikpager_responsive) instead. Parameters in setting tags like `GridPagerSettings.Adaptive`, `TreeListPagerSettings.Adaptive`, etc., are renamed to `Responsive`. For example, `GridPagerSettings.Responsive`.
+
+## ToolBar
+
+The `TelerikToolBar.Adaptive` parameter is now deprecated. Use the [`OverflowMode` parameter](https://www.telerik.com/blazor-ui/documentation/api/telerik.blazor.components.teleriktoolbar#telerik_blazor_components_teleriktoolbar_overflowmode) instead.
diff --git a/upgrade/breaking-changes/list.md b/upgrade/breaking-changes/list.md
index bf9165802..8f89a62bf 100644
--- a/upgrade/breaking-changes/list.md
+++ b/upgrade/breaking-changes/list.md
@@ -9,6 +9,7 @@ position: 0
 # List of Telerik UI for Blazor Versions with Breaking Changes
 
 This article lists the releases of the Telerik UI for Blazor product that introduce breaking changes. You may want to go through it when [upgrading](slug:upgrade-tutorial) to see whether you are affected.
+* [12.0.0](slug:changes-in-12-0-0)
 * [10.0.0](slug:changes-in-10-0-0)
 * [9.0.0](slug:changes-in-9-0-0)
 * [8.0.0](slug:changes-in-8-0-0)