Update CHANGELOG

Author: msaps

CHANGELOG.md

@@ -3,7 +3,7 @@ All notable changes to this project will be documented in this file.
 `Pageboy` adheres to [Semantic Versioning](http://semver.org/).
 
 #### 3.x Releases
-- `3.0.x` Releases - [3.0.0](#300) | [3.0.1](#301) | [3.0.2](#302)
+- `3.0.x` Releases - [3.0.0](#300) | [3.0.1](#301) | [3.0.2](#302) | [3.0.3](#303) | [3.0.4](#304)
 
 #### 2.x Releases
 - `2.6.x` Releases - [2.6.0](#260) | [2.6.1](#261)
@@ -26,6 +26,13 @@ All notable changes to this project will be documented in this file.
 
 ---
 
+## [3.0.4](https://github.com/uias/Pageboy/releases/tag/3.0.4)
+Released on 2019-02-17
+
+#### Fixed
+- [#195](https://github.com/uias/Pageboy/pull/195) Ensure view controller update work is performed synchronously on the main thread.
+     - by [remirobert](https://github.com/remirobert)
+
 ## [3.0.3](https://github.com/uias/Pageboy/releases/tag/3.0.3)
 Released on 2019-02-13