Update CHANGELOG.md

Author: marickvantuil

CHANGELOG.md

@@ -4,6 +4,12 @@ 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).
 
+## 2.0.0 - 2020-10-11
+
+**Changed**
+
+- Change authentication method from config value path to Application Default Standard
+
 ## 1.0.0 - 2020-06-20
 
 **Added**