1 files changed, 18 insertions, 0 deletions
diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md
index 026bb71949..9e44131fa9 100644
--- a/activerecord/CHANGELOG.md
+++ b/activerecord/CHANGELOG.md
@@ -1,3 +1,21 @@
+*   `where` raises ArgumentError on unsupported types.
+
+    Fixes #20473.
+
+    *Jake Worth*
+
+*   Add an immutable string type to help reduce memory usage for apps which do
+    not need mutation detection on Strings.
+
+    *Sean Griffin*
+
+*   Give `AcriveRecord::Relation#update` its own deprecation warning when
+    passed an `ActiveRecord::Base` instance.
+
+    Fixes #21945.
+
+    *Ted Johansson*
+
 *   Make it possible to pass `:to_table` when adding a foreign key through
     `add_reference`.