Deprecation: #85980 - @internal annotation in extbase commands

See Issue #85980

Description

The @internal annotation has been marked as deprecated and will be removed from TYPO3 v10 without any replacement.

This is a regular phpDocumentor annotation that is used to denote that associated structural elements are elements internal to the application or library. It has been misused by Extbase to tell if a command is internal and thus should not be exposed through help texts, user documentation etc.

TYPO3 does no longer support the use of the @internal annotation to influence the behaviour of the code.

Impact

Using @internal on methods of classes extending TYPO3\CMS\Extbase\Mvc\Controller\CommandController will trigger a PHP E_USER_DEPRECATED error.

Affected Installations

All installations that make use of Extbase commands whose methods are tagged with @internal.

Migration

Just remove the annotation from the affected controllers.