Update changelog

Author: ProxiBlue

CHANGELOG.md

@@ -4,6 +4,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.12] - 2020.05.26
+
+### Fixed
+- Missing packages in Docker Makefile (make, python and g++) - @proxiblue (#448)
+
 ## [1.11.1] - 2020.03.17
 
 ### Added