#83: Prepare changelog for release 0.5.0 (#85)

Fixes #83

Author: tomuben

doc/changes/changes_0.5.0.md

@@ -1,10 +1,11 @@
-# Script-Languages-Container-Tool 0.5.0, released t.b.d.
+# Script-Languages-Container-Tool 0.5.0, released 2021-10-28
 
-Code name: t.b.d.
+Code name: Run tests with Python3
 
 ## Summary 
 
-t.b.d.
+This version runs the db-tests with Python3, instead of Python2.7 (which has reached EOL).
+Therefore, the test-environment installs Python3. Note that all script-language tests must be changed to Python3 with this change.
 
 ## Features / Enhancements
 
@@ -16,4 +17,4 @@ t.b.d.
 n/a
 
 ## Documentation
-n/a
+ - #83: Prepare changelog for release 0.5.0