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diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md
index 3bd85976a0..d6044988f0 100644
--- a/activerecord/CHANGELOG.md
+++ b/activerecord/CHANGELOG.md
@@ -1,3 +1,34 @@
+*   Add support for `Relation` be passed as parameter on `QueryCache#select_all`.
+
+    Fixes #14361.
+
+    *arthurnn*
+
+* Passing an Active Record object to `find` is now deprecated.  Call `.id`
+  on the object first.
+
+* Passing an Active Record object to `exists?` is now deprecated.  Call `.id`
+  on the object first.
+
+*   Only use BINARY for mysql case sensitive uniqueness check when column has a case insensitive collation.
+
+    *Ryuta Kamizono*
+
+*   Support for Mysql 5.6 Fractional Seconds.
+
+    *arthurnn*, *Tatsuhiko Miyagawa*
+
+*   Support for Postgres `citext` data type enabling case-insensitive where
+    values without needing to wrap in UPPER/LOWER sql functions.
+
+    *Troy Kruthoff*, *Lachlan Sylvester*
+
+*   Only save has_one associations if record has changes.
+    Previously after save related callbacks, such as `#after_commit`, were triggered when the has_one
+    object did not get saved to the db.
+
+    *Alan Kennedy*
+
 *   Allow strings to specify the `#order` value.
 
     Example: