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New Deprecations

Developer Note

This version of Joomla has not yet been released, so this page is subject to change at any time. Deprecations added up to and including version 5.4.0-beta2 are listed below.

New deprecations to be aware of — and the recommended alternatives. For previously existing deprecations where the Joomla version in which they take effect has changed, see the Changed Deprecations page.

New Class Deprecations​

The following classes are marked as deprecated in Joomla 5.4 and are scheduled for removal in Joomla 7.0. Where no alternative is listed, the functionality is considered obsolete and should not be relied upon in future code.

UCM System​

In Joomla 3.2, the Unified Content Model (UCM) was introduced, which was supposed to be a universal system for all content in Joomla. The concept turned out to be not viable and the remnants of this have now been deprecated for removal in Joomla 7.0. The following classes have been deprecated without replacement:

  • ❌ Joomla\CMS\Table\Ucm
  • ❌ Joomla\CMS\UCM\UCM
  • ❌ Joomla\CMS\UCM\UCMBase
  • ❌ Joomla\CMS\UCM\UCMContent
  • ❌ Joomla\CMS\UCM\UCMType

Related PR: 44910 – Deprecating UCM code

Random Image Module​

45648 – Convert mod_random_image to service provider

  • ❌ Avoid using the getRandomImage() static method.
    • ✅ Instead use the non-static getImage() method.
  • ❌ Avoid using the getImages() static method.
    • ✅ Instead use the non-static getImagesFromFolder() method.
  • ❌ Avoid using the getFolder() static method.
    • ✅ Instead use the non-static getSanitizedFolder() method.

CMSPlugin registerListeners()​

43395 – CMSPlugin: deprecation for registerListeners

  • ❌ registerListeners() is deprecated in both Joomla\CMS\Extension\PluginInterface and Joomla\CMS\Plugin\CMSPlugin.
    • ✅ Instead, implement the SubscriberInterface. The method is no longer required in this case.

Table $_db, getDbo(), and setDbo()​

45165 – Replace table _db with DatabaseAwareTrait

  • ❌ Do not access the Joomla\CMS\Table\Table::_db property directly — it will be removed in the future.
  • ❌ Avoid using the getDbo() and setDbo() methods — they will also be removed.
    • ✅ Use getDatabase() and setDatabase() instead. Sample: 
      $db = $this->getDatabase();
      $this->setDatabase($db);

FieldsPlugin $app Property​

45695 – Deprecate app property in FieldsPlugin

File: administrator/components/com_fields/src/Plugin/FieldsPlugin.php

  • ❌ The $this->app property is deprecated in the fields plugins.
    • ✅ Instead, use $this->getApplication() when the plugin is converted to service providers.

New Language String Deprecations​

New language string deprecations, planned for removal in Joomla! 6.0, are the following language keys:

  • 45564 – Deprecate language string
    • ❌ Avoid using the COM_JOOMLAUPDATE_VIEW_DEFAULT_UPDATES_INFO_TESTING language key.
  • 45725 – Deprecate language string
    • ❌ Avoid using the COM_FINDER_CONFIG_HILIGHT_CONTENT_SEARCH_TERMS_LABEL language key.
      • ✅ Use COM_FINDER_CONFIG_HIGHLIGHT_CONTENT_SEARCH_TERMS_LABEL instead.
  • 45727 – Deprecate language string Mis_typed
    • ❌ Avoid using the JERROR_LAYOUT_MIS_TYPED_ADDRESS language key.
      • ✅ Use JERROR_LAYOUT_MISTYPED_ADDRESS instead.
  • 45706 – configurated
    • ❌ Avoid using the PLG_SYSTEM_SCHEMAORG_FIELD_SCHEMA_DESCRIPTION_NOT_CONFIGURATED language key.
      • ✅ Use PLG_SYSTEM_SCHEMAORG_FIELD_SCHEMA_DESCRIPTION_NOT_CONFIGURED instead.
    • ❌ Avoid using the PLG_SYSTEM_SCHEMAORG_FIELD_SCHEMA_DESCRIPTION_NOT_CONFIGURATED_ADMIN language key.
      • ✅ Use PLG_SYSTEM_SCHEMAORG_FIELD_SCHEMA_DESCRIPTION_NOT_CONFIGURED_ADMIN instead.