CHANGELOG.md in hanny-0.2.1 vs CHANGELOG.md in hanny-0.2.2

- old
+ new

@@ -1,4 +1,7 @@
+# 0.2.2
+- Refactor codes and configs with RuboCop
+
 # 0.2.1
 - Remove dependent gem's type declaration file from installation files.
 
 # 0.2.0
 - Add type declaration files.