CHANGELOG.md in aasm-4.8.0 vs CHANGELOG.md in aasm-4.9.0

@@ -1,6 +1,16 @@
 # CHANGELOG
 
+## 4.9.0
+
+ * add support for callback classes (`after` only) (see [issue #316](https://github.com/aasm/aasm/pull/316) for details, thanks to [@mlr](https://github.com/mlr))
+ * allow easier extension of _AASM_ (utilising the idea of _ApplicationRecords_ from _Rails 5_) (see [issue #296](https://github.com/aasm/aasm/pull/296) for details, thanks to [@mlr](https://github.com/mlr))
+ * support pessimistic locking for _ActiveRecord_ (see [issue #283](https://github.com/aasm/aasm/pull/283) for details, thanks to [@HoyaBoya](https://github.com/HoyaBoya))
+ * fix: support database sharding for _ActiveRecord_ (see [issue #289](https://github.com/aasm/aasm/pull/289) for details, thanks to [@scambra](https://github.com/scambra))
+ * fix: some issues with RubyMotion (see [issue #318](https://github.com/aasm/aasm/pull/318) for details, thanks to [@Infotaku](https://github.com/Infotaku))
+ * fix: Rails generator now features the correct namespace (see [issue #328](https://github.com/aasm/aasm/pull/328) and [issue #329](https://github.com/aasm/aasm/pull/329) for details, thanks to [@anilmaurya](https://github.com/anilmaurya))
+
+
 ## 4.8.0
 
  * add support for [dynamoid](http://joshsymonds.com/Dynamoid/) (see [issue #300](https://github.com/aasm/aasm/pull/300) for details, thanks to [@LeeChSien](https://github.com/LeeChSien))
  * make compatible with [RubyMotion](http://www.rubymotion.com) (see [issue #315](https://github.com/aasm/aasm/pull/315) for details, thanks to [@Infotaku](https://github.com/Infotaku))
  * improve error handling in case of an exception during transitioning (see [issue #275](https://github.com/aasm/aasm/pull/275) for details, thanks to [@chriswoodrich](https://github.com/chriswoodrich))