Deprecation: #87882 - File related controllers moved to EXT:filelist 

Description 

The following controllers have been moved to extension filelist as they are part of the filelist feature set:

• CreateFolderController
• EditFileController
• FileUploadController
• RenameFileController
• ReplaceFileController

Impact 

The namespace changed from \TYPO3\CMS\Backend\Controller\File to \TYPO3\CMS\Filelist\Controller\File. Using the old controllers will trigger a PHP E_USER_DEPRECATED error.

Affected Installations 

Installations accessing any of the above controllers.

Migration 

When wanting to use any of the functionality in these controllers, you should build your own controllers as they are internal and might change at any time. Use the TYPO3 file abstraction layer as API and add your own functionality on top of it with an own controller instead of reusing these.