Merge pull request rails#49149 from deepakmahakale/release_notes_7_1/merge_rewhere_deprecated

[skip ci] rewhere argument on #merge deprecated

Author: kamipo

activerecord/CHANGELOG.md

@@ -1,3 +1,10 @@
+*   Deprecate `rewhere` argument on `#merge`.
+
+    The `rewhere` argument on `#merge`is deprecated without replacement and
+    will be removed in Rails 7.2.
+
+    *Adam Hess*
+
 *   Fix unscope is not working in specific case
 
     Before:

guides/source/7_1_release_notes.md

@@ -500,6 +500,8 @@ Please refer to the [Changelog][active-record] for detailed changes.
 
 *   Deprecate `read_attribute(:id)` returning the primary key if the primary key is not `:id`.
 
+*   Deprecate `rewhere` argument on `#merge`.
+
 ### Notable changes
 
 *   Add `TestFixtures#fixture_paths` to support multiple fixture paths.