Deprecation: #95343 - Legacy hook for new content element wizard

See Issue #95343

Description

The hook $GLOBALS['TBE_MODULES_EXT']['xMOD_db_new_content_el']['addElClasses'] which has been used primarily back in TYPO3 v4.x times with the extension kickstarter for pi-based plugins has been marked as deprecated.

Impact

When an extension is registering a hook, and the Create new content element wizard is called, a PHP E_USER_DEPRECATED error is triggered.

Affected installations

TYPO3 installations with third-party extensions using this hook.

Migration

The alternative hook $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['cms']['db_new_content_el']['wizardItemsHook'] can be used instead, which allows to modify and add wizard items as well.