Breaking: #68812 - Old Backend Entrypoints moved to deprecation layer¶
The backend entry points within the typo3/ directory which have been marked as deprecated in favor of using typo3/index.php directly as Entry Point via Request Handling, have been moved to a deprecation.php file.
The following files have therefore been removed from the typo3/ directory directly:
typo3/ajax.php typo3/alt_clickmenu.php typo3/alt_db_navframe.php typo3/alt_doc.php typo3/alt_file_navframe.php typo3/browser.php typo3/db_new.php typo3/dummy.php typo3/init.php typo3/login_frameset.php typo3/logout.php typo3/mod.php typo3/move_el.php typo3/show_item.php typo3/tce_db.php typo3/tce_file.php typo3/thumbs.php
The typo3/install/ entrypoint is now also redirected with a rewrite rule.
All references / links to these entry points directly without using the proper API calls will result in a 404 error.
If an Apache webserver is used with the enabled mod_rewrite module, a .htaccess file placed inside typo3/ will rewrite the URLs to the deprecated.php and throw a deprecation warning.
For Nginx and IIS an alternative for the rewrite rules in the shipped typo3/.htaccess within needs to be added.
Installations with third-party extensions that link directly to these files.
Move all existing code in extensions that link to the deprecated entry points to use methods
BackendUtility::getAjaxUrl() or the UriBuilder class.