.. include:: /Includes.rst.txt .. _deprecation-89742: ================================= Deprecation: #89742 - Form mixins ================================= See :issue:`89742` Description =========== All mixins in the "form" extension have been deprecated and should not be used anymore. This affects all inheritances from :yaml:`TYPO3.CMS.Form.mixins.*`. The mixins have been deprecated with TYPO3v10 and will be removed with TYPO3v11. Impact ====== Form setup inheriting mixins from :yaml:`TYPO3.CMS.Form.mixins.*` will trigger a deprecation warning in TYPO3v10. With TYPO3v11 these mixins will be removed which will lead to an error. Affected Installations ====================== Instances using the "form" extension and inheriting from :yaml:`TYPO3.CMS.Form.mixins.*` in their form setup. Migration ========= Embed the essential parts from :yaml:`TYPO3.CMS.Form.mixins.*` or migrate them to custom mixins. .. index:: Backend, Frontend, NotScanned, ext:form