Deprecation: #68141 - typo3/ajax.php

See Issue #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 BackendUtility.

Migration

Use BackendUtility::getAjaxUrl().