Merge pull request #1438 from ioBroker-Bot/update-from-template-S6020-addChangelogOld-1777799602

[iobroker-bot] Add CHANGELOG_OLD.md to store older changelog entries

Author: simatec

README.md

@@ -82,6 +82,8 @@ When you allow iobroker GmbH to collect diagnostic data, then also your installa
 ### 3.3.13 (2025-12-14)
 * (simatec) Fix Error Log for CCU Backup
 
+[Older changelogs can be found there](CHANGELOG_OLD.md)
+
 ## License
 
 The MIT License (MIT)