CHANGELOG.md in event_sourcery-0.16.1 vs CHANGELOG.md in event_sourcery-0.17.0

@@ -3,10 +3,13 @@
 All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
-## [Unreleased]
+## [0.17.0] - 2018-03-22
+### Added
+- Allow changing the event class using Event#with
+- Allow upcasting events using custom event classes
 
 ## [0.16.1] - 2018-01-17
 - Fixed bug with Sequel gem expecting processes_event_types to be an Array
 
 ## [0.16.0] - 2018-01-02