TYPO3 v15 dev-main snapshot ()

2026-08-10 22:31:09 +02:00
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+.. include:: /Includes.rst.txt
+
+.. _breaking-96899:
+
+========================================================
+Breaking: #96899 - "displayWarningMessages" hook removed
+========================================================
+
+See :issue:`96899`
+
+Description
+===========
+
+The hook :php:`$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_befunc.php']['displayWarningMessages']`
+has been removed in favor of a new PSR-14 event
+:php:`\TYPO3\CMS\Backend\Controller\Event\ModifyGenericBackendMessagesEvent`.
+
+The hook was used to display messages in the About module.
+
+Impact
+======
+
+Registered hooks are not executed anymore.
+
+Affected Installations
+======================
+
+TYPO3 installations with custom extensions using this hook, which is very
+unlikely. The extension scanner will report possible usages.
+
+Migration
+=========
+
+The hook is removed without deprecation in order to allow extensions
+to work with TYPO3 v11 (using the hook) and v12+ (using the new event).
+
+Use the :doc:`PSR-14 event <Feature-96899-NewPSR-14EventModifyGenericBackendMessagesEvent>`
+as a direct replacement.
+
+.. index:: Backend, PHP-API, FullyScanned, ext:backend