changelog

Author: willmcgugan

CHANGELOG.md

@@ -11,6 +11,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 - Fixed issues with initial flicker in `TextArea` rendering https://github.com/Textualize/textual/issues/5841
 - Fixed issue with workers that have large parameter lists breaking dev tools 
+- Fixed post_message failing on 3.8 https://github.com/Textualize/textual/pull/5848
 
 ### Added