CHANGELOG.md in potassium-1.2.3 vs CHANGELOG.md in potassium-1.2.4

@@ -18,11 +18,11 @@
   - Removed RSpec `--warnings` option.
 
 Features:
   - Added `aws-sdk` gem (< 2).
   - Added `activeadmin_addons` when using ActiveAdmin.
-  - Added AngularJS support for ActiveAdmin. 
+  - Added AngularJS support for ActiveAdmin.
 
 Chore:
   - Removed several questions for ActiveAdmin support.
 
 ## 1.2.1
@@ -44,5 +44,10 @@
   - Added optional API support that includes the following:
     - A concern that offer standard responses to common errors.
     - Versionist Support.
     - `simple_token_authentication`, `active_model_serializers` and `responders` gem.
     - A default responder for API common behavior.
+
+## 1.2.4
+
+Features:
+  - Added Rack CORS gem and config