Breaking: #69795 - Unused DTM Tabmenu code removed

See forge#69795


All DynTabMenu JavaScript and CSS code which was previously used to render Tab Menus in the TYPO3 Backend has been removed without substitution.


All logic that requires EXT:backend/Resources/Public/JavaScript/tabmenu.js directly and/or use the JavaScript code of DTM_activate() or DTM_toggle() directly have been removed.

Affected Installations

TYPO3 Installations with custom extensions that use the logic mentioned above.


Use ModuleTemplate::getDynamicTabMenu() directly to use the Bootstrap-based API shipped with the TYPO3 Core.