Merge pull request #851 from niccokunzmann/release

version 6.3.1

Author: niccokunzmann

CHANGES.rst

@@ -7,21 +7,9 @@ We use `Semantic Versioning <https://semver.org>`_.
 - New features increase the **minor** version number.
 - Minor changes and bug fixes increase the **patch** version number.
 
-6.3.1 (unreleased)
+6.3.1 (2025-05-20)
 ------------------
 
-Minor changes:
-
-- ...
-
-Breaking changes:
-
-- ...
-
-New features:
-
-- ...
-
 Bug fixes:
 
 - Remove forced quoting from parameters with space and single quote. See `Issue 836 <https://github.com/collective/icalendar/issues/836>`_.