Deprecation: #62855 - “XHTML cleaning” functionality moved to legacy extension¶
See Issue #62855
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:
The following PHP method has been marked for deprecation:
The content output of the TYPO3 frontend is not cleaned anymore unless EXT:compatibility6 is loaded.
Any installation having the TypoScript option
config.xhtml_cleaning set will have different behaviour in the
For TYPO3 CMS 7, installing EXT:compatibility6 brings back the existing functionality.