TYPO3 v15 dev-main snapshot ()

2026-08-10 22:31:09 +02:00
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+.. include:: /Includes.rst.txt
+
+.. _deprecation-62855:
+
+==============================================================================
+Deprecation: #62855 - "XHTML cleaning" functionality moved to legacy extension
+==============================================================================
+
+See :issue:`62855`
+
+Description
+===========
+
+XHTML cleaning is not necessary anymore, since modern technology bases completely on HTML5. Therefore the
+according functionality has been moved to the legacy extension EXT:compatibility6.
+
+The following TypoScript option has been marked for deprecation:
+
+.. code-block:: typoscript
+
+   config.xhtml_cleaning
+
+The following PHP method has been marked for deprecation:
+
+.. code-block:: php
+
+   TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController::doXHTML_cleaning()
+
+Impact
+======
+
+The content output of the TYPO3 frontend is not cleaned anymore unless EXT:compatibility6 is loaded.
+
+
+Affected installations
+======================
+
+Any installation having the TypoScript option :typoscript:`config.xhtml_cleaning`
+set will have different behaviour in the
+frontend rendering.
+
+Migration
+=========
+
+For TYPO3 CMS 7, installing EXT:compatibility6 brings back the existing functionality.
+
+
+.. index:: TypoScript, Frontend