CHANGELOG.md in groupdate-2.2.0 vs CHANGELOG.md in groupdate-2.2.1

- old
+ new

@@ -1,4 +1,8 @@
+## 2.2.1
+
+- Fixed ActiveRecord 3 associations
+
 ## 2.2.0
 
 - Added support for Arrays and Hashes
 
 ## 2.1.1