CHANGELOG.md in rakuten_web_service-1.5.0 vs CHANGELOG.md in rakuten_web_service-1.6.0

@@ -1,4 +1,10 @@
+# v1.6.0 (2017/08/16)
+
+## Improvements
+
+* Added `RakutenWebService::BaseGenre#brothers`. [#74](https://github.com/rakuten-ws/rws-ruby-sdk/pull/74)
+
 # v1.5.0 (2017/03/31)
 
 ## Improvements
 
 * Allows to call `RakutenWebService::Recipe.ranking` without `category_id`. [#70](https://github.com/rakuten-ws/rws-ruby-sdk/pull/70)