Deprecation: #86178 - Class ElementBrowserFramesetController 

See forge#86178

Description 

Class \TYPO3\CMS\Recordlist\Controller\ElementBrowserFramesetController and the route target of browser have been marked as deprecated and should not be used any longer.

Impact 

If calling that controller class a PHP E_USER_DEPRECATED error is triggered.

Affected Installations 

The route target is unused in core for a while already. Extensions are only affected if they call the Backend route target browser that renders the element browser in a frameset.

Migration 

Use the modal based element browser with the route wizard_element_browser instead.