CHANGELOG.md in embulk-input-mixpanel-0.5.7 vs CHANGELOG.md in embulk-input-mixpanel-0.5.8

@@ -1,4 +1,9 @@
+## 0.5.8 - 2017-09-26
+
+* [bug] Fix issue when back_fill data get processed by Mixpanel when plugin is running [#56](https://github.com/treasure-data/embulk-input-mixpanel/pull/56)
+* [bug] Revert PR #54 [#56](https://github.com/treasure-data/embulk-input-mixpanel/pull/56)
+
 ## 0.5.6 - 2017-09-20
 * [bug] Fix issue when back_fill data get processed by Mixpanel when plugin is running [#54](https://github.com/treasure-data/embulk-input-mixpanel/pull/54)
 
 ## 0.5.5 - 2017-09-11
 * [enhancement] Add slice_range configuration [#52](https://github.com/treasure-data/embulk-input-mixpanel/pull/52)