diff --git a/.github/workflows/test_and_coverage.yml b/.github/workflows/test_and_coverage.yml
index e433b79..b20b465 100644
--- a/.github/workflows/test_and_coverage.yml
+++ b/.github/workflows/test_and_coverage.yml
@@ -19,9 +19,6 @@ jobs:
             matrix:
                 os: [ubuntu-latest, macOS-latest] # windows-latest: do not work. antspyx is not available for windows
                 python-version: ['3.9', '3.10', '3.11']
-                # exclude:
-                # -   os: macOS-latest # anstpyx install is messed up with macOS and python 3.9
-                #     python-version: '3.9'
             fail-fast: false
 
         steps:
diff --git a/docs/source/CHANGELOG.md b/docs/source/CHANGELOG.md
index 7fa649d..5fcad1c 100644
--- a/docs/source/CHANGELOG.md
+++ b/docs/source/CHANGELOG.md
@@ -6,6 +6,8 @@ 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]
+
 ### Added
 
 ### Changed
@@ -19,7 +21,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Security
 -->
 
-## [Unreleased]
+## [0.5.0] - 2023-08-12
 
 ### Added