TYPO3 v15 dev-main snapshot ()

2026-08-10 22:31:09 +02:00
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+.. include:: /Includes.rst.txt
+
+.. _breaking-96968:
+
+===============================================
+Breaking: #96968 - Hook "headerNoCache" removed
+===============================================
+
+See :issue:`96968`
+
+Description
+===========
+
+The previous TYPO3 Hook "headerNoCache" registered via
+:php:`$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['tslib/class.tslib_fe.php']['headerNoCache']`
+has been removed in favor of a new PSR-14 event
+:php:`ShouldUseCachedPageDataIfAvailableEvent`.
+
+Impact
+======
+
+Hooks in third-party extensions will not be executed anymore.
+
+Affected Installations
+======================
+
+TYPO3 installations with custom extensions using this hook.
+
+Migration
+=========
+
+Register a new PSR-14 event listener for
+:ref:`ShouldUseCachedPageDataIfAvailableEvent <feature-96968-1663513232>`
+in the extension's :file:`Services.yaml` to keep TYPO3 v12+ compatibility.
+
+Extensions can then provide compatibility with TYPO3 v11 and TYPO3 v12 at
+the same time.
+
+.. index:: Frontend, PHP-API, FullyScanned, ext:frontend