CHANGELOG.md in mailkick-0.0.3 vs CHANGELOG.md in mailkick-0.0.4

@@ -1,4 +1,8 @@
+## 0.0.4
+
+- Added `email_key` option to `mailkick_user`
+
 ## 0.0.3
 
 - Added support for multiple lists
 - Changed `mailkick_user` method names - sorry early adopters :(