Add deprecation of UCM system #484
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richard67
approved these changes
Jun 19, 2025
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User description
This is the documentation PR for joomla/joomla-cms#44910
PR Type
Documentation
Description
• Document deprecation of UCM (Unified Content Model) system classes
• Add migration guide for Joomla 5.3-5.4 version upgrade
• Reference related implementation PR for UCM deprecation
Changes walkthrough 📝
new-deprecations.md
Add UCM system deprecation documentationmigrations/53-54/new-deprecations.md
• Add new "Class deprecations" section for UCM system
• Document 5
deprecated UCM classes without replacement
• Include explanation of
UCM concept failure and removal timeline
• Reference related
implementation PR link