Pro-Changes.md in sidekiq-5.2.2 vs Pro-Changes.md in sidekiq-5.2.3

@@ -2,9 +2,14 @@
 
 [Sidekiq Changes](https://github.com/mperham/sidekiq/blob/master/Changes.md) | [Sidekiq Pro Changes](https://github.com/mperham/sidekiq/blob/master/Pro-Changes.md) | [Sidekiq Enterprise Changes](https://github.com/mperham/sidekiq/blob/master/Ent-Changes.md)
 
 Please see [http://sidekiq.org/](http://sidekiq.org/) for more details and how to buy.
 
+HEAD
+---------
+
+- Add Japanese and Russian translations, see [issue #3951](https://github.com/mperham/sidekiq/issues/3951) to add your own language
+
 4.0.4
 ---------
 
 - Update Sidekiq::Client patches to work with new Module#prepend
   mechanism in Sidekiq 5.2.0. [#3930]