Deprecation: #68141 - typo3/ajax.php
See forge#68141
Description
The ajax.php entry-point has been marked as deprecated. All AJAX requests in the Backend using the Ajax API are not affected as they automatically use index.php.
Impact
All extensions directly linking to typo3/ajax.php will throw a deprecation warning.
Affected Installations
Installations with custom extensions that call typo3/ajax.php without using proper API calls from Backend.
Migration
Use Backend.