CHANGELOG.md in event_sourcery-0.13.0 vs CHANGELOG.md in event_sourcery-0.14.0

@@ -3,9 +3,19 @@
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
+
+## [0.14.0] - 2016-6-21
+### Added
+- Added `Event#to_h` method. This returns a hash of the event attributes.
+- Added `Event#with` method. This provides a way to create a new event
+  identical to the old event except for the provided changes.
+- `Event#initialize` accepts `aggregate_id` parameter that either is
+  a strings or responds to `to_str`.
+
+## [0.13.0] - 2016-6-16
 ### Added
 - The core Event class accepts `causation_id` to allow event stores to
   add support for tracking causation ids with events.
 - The core Memory event store saves the `causation_id` and `correlation_id`.