set version number to 0.2.1

Author: dlaidig

CHANGELOG.md

@@ -18,6 +18,8 @@ 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).
 
 ## [Unreleased]
+
+## [0.2.1] - 2022-05-09
 ### Changed
 - The webapp viewer now uses PySide6 by default and PySide2 as a fallback (set QT_API=PySide2 to always use PySide2).
 ### Fixed
@@ -47,6 +49,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added
 - Initial release.
 
-[Unreleased]: https://github.com/dlaidig/qmt/compare/v0.2.0...HEAD
+[Unreleased]: https://github.com/dlaidig/qmt/compare/v0.2.1...HEAD
+[0.2.1]: https://github.com/dlaidig/qmt/compare/v0.2.0...v0.2.1
 [0.2.0]: https://github.com/dlaidig/qmt/compare/v0.1.0...v0.2.0
 [0.1.0]: https://github.com/dlaidig/qmt/releases/tag/v0.1.0

setup.py

@@ -35,7 +35,7 @@
 
 setup(
     name='qmt',
-    version='0.2.0',
+    version='0.2.1',
 
     description='Quaternion-based Inertial Motion Tracking Toolbox',
     long_description=open('README.rst', encoding='utf-8').read(),