Breaking: #97449 - Removed hook for modifying flex form parsing¶
supporting the four hook methods
has been removed in favor of four new dedicated PSR-14 events.
Any hook implementation registered is not executed anymore in TYPO3 v12.0+. The extension scanner will report possible usages.
TYPO3 installations with custom extensions using this hook.
The hook is removed without deprecation in order to allow extensions to work with TYPO3 v11 (using the hook) and v12+ (using the new event).
Use the PSR-14 events as an improved replacement.