Update CHANGELOG.md

Author: letmaik

CHANGELOG.md

@@ -4,6 +4,16 @@ 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).
 
+## [0.9.0] - 2021-12-12
+### Added
+- Python 3.10 support.
+
+### Removed
+- Drop Python 3.6 support.
+
+### Fixed
+- Linux: Close opened devices if `device` is not given (#59)
+
 ## [0.8.0] - 2021-04-19
 ### Added
 - Windows: [Unity Capture](https://github.com/schellingb/UnityCapture) virtual camera with RGBA support (#56).
@@ -96,6 +106,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Support for [OBS-VirtualCam](https://github.com/CatxFish/obs-virtual-cam).
 
 
+[0.9.0]: https://github.com/letmaik/pyvirtualcam/compare/v0.8.0...v0.9.0
 [0.8.0]: https://github.com/letmaik/pyvirtualcam/compare/v0.7.0...v0.8.0
 [0.7.0]: https://github.com/letmaik/pyvirtualcam/compare/v0.6.0...v0.7.0
 [0.6.0]: https://github.com/letmaik/pyvirtualcam/compare/v0.5.0...v0.6.0