VCI-166: Update changelog

CHANGELOG.md

@@ -3,6 +3,18 @@ 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).
+## [2.1.0] - 2021-10-01
+### Added
+- MatchVersions target
+- DefaultProject parameter
+- Ability to update only platform
+- help target
+### Changed
+- appsettings.json doesn't reset on update
+### Fixed
+- User input in QuickRelease target
+- Building of sample projects
+
 ## [2.0.0] - 2021-08-05
 ### Changed
 - vc-build was updated to .Net 5