Update CHANGELOG.md

CHANGELOG.md

@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 
 ## [Unreleased]
 
+## [0.20.4] - 2021-09-01
+### Fixed
+- Removed python typing Final as it is not available in python 3.7
+
 ## [0.20.3] - 2021-08-30
 ### Fixed
 - Display of consent url fixed
@@ -259,7 +263,8 @@ Minor fix in observer interface
 ## [0.1.0] - 2021-05-26
 Initial release
 
-[unreleased]: https://github.com/tillsteinbach/WeConnect-python/compare/v0.20.3...HEAD
+[unreleased]: https://github.com/tillsteinbach/WeConnect-python/compare/v0.20.4...HEAD
+[0.20.4]: https://github.com/tillsteinbach/WeConnect-python/releases/tag/v0.20.4
 [0.20.3]: https://github.com/tillsteinbach/WeConnect-python/releases/tag/v0.20.3
 [0.20.2]: https://github.com/tillsteinbach/WeConnect-python/releases/tag/v0.20.2
 [0.20.1]: https://github.com/tillsteinbach/WeConnect-python/releases/tag/v0.20.1