Release 11.0.0

Author: GrahamCampbell

CHANGELOG.md

@@ -5,7 +5,7 @@ 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).
 
-## [11.0.0] - UPCOMING
+## [11.0.0] - 2020-12-22
 
 * Removed models API
 * Dropped support for PHP 7.1