Breaking: #69148 - Backend Module Dispatching removed

See Issue #69148

Description

Dispatching Backend modules through custom dispatchers have been removed. The corresponding Extbase functionality called “ModuleRunner” and its Interface have been removed as well.

Impact

Any dispatcher registered via $TBE_MODULES['_dispatcher'] is not evaluated anymore.

Affected Installations

All TYPO3 Instances with an extension that registers a custom backend module dispatcher.

Migration

Use a custom RequestHandler.