This is a usage example for http://forge.typo3.org/issues/45022

gistfile1.php

<?

class MyClass {
  
  /**
   * @publicCallDeprecated Since 6.1. Will be protected 2 versions later
   */
  public function doStuff() {
    \TYPO3\CMS\Core\Utility\GeneralUtility::logDeprecatedPublicMethodCall();
    // do stuff
  }
  
}

?>