Update CHANGELOG.md

Author: vfalies

CHANGELOG.md

@@ -4,9 +4,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [1.1] - 2017-12-29
+### Changed
+- Update wimg/php-compatibility from 8.0.1 to 8.1.0
+
 ## [1.0] - 2017-12-26
 ### Added
 - Add dependencies.yml file for dependencies.io
 
 ### Changed
-- Fix version of EnvdevPHPBase image to 7.2 version
+- Fix version of EnvdevPHPBase image to 7.2 version