Deprecation: #99592 - Deprecated "flushByTag" hook

See forge#99592

Description

The hook $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/cache/frontend/class.t3lib_cache_frontend_abstractfrontend.php']['flushByTag'] has been marked as deprecated, since the recommended way for custom cache functionality is to implement a custom cache frontend, using the Frontend API.

Impact

Any hook implementation registered won't be executed anymore in TYPO3 v13. The extension scanner will report possible usages.

Affected installations

All installations making use of the deprecated hook.

Migration

Migrate corresponding functionality in the flushByTag() method of your own cache frontend implementation.