Attention

TYPO3 v12 has reached end-of-life as of April 30th 2026 and is no longer being maintained. Use the version switcher on the top left of this page to select documentation for a supported version of TYPO3.

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Handling deprecations

Note

How to handle deprecations in TYPO3 CMS is covered in the Contribution Guide: How to deprecate classes, methods, arguments and hooks in the TYPO3 Core.