Pro-Changes.md in sidekiq-5.1.3 vs Pro-Changes.md in sidekiq-5.2.0

@@ -2,9 +2,19 @@
 
 [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.
 
+4.0.3
+---------
+
+- Add at\_exit handler to push any saved jobs in `reliable_push` when exiting. [#3823]
+- Implement batch death callback.  This is fired the first time a job within a batch dies. [#3841]
+```ruby
+batch = Sidekiq::Batch.new
+batch.on(:death, ...)
+```
+
 4.0.2
 ---------
 
 - Remove super\_fetch edge case leading to an unnecessary `sleep(1)`
   call and resulting latency [#3790]