.. include:: /Includes.rst.txt .. index:: Events; PackagesMayHaveChangedEvent .. _PackagesMayHaveChangedEvent: =========================== PackagesMayHaveChangedEvent =========================== .. versionadded:: 10.3 The event was introduced to replace the Signal/Slot `\TYPO3\CMS\Core\Package\PackageManager::packagesMayHaveChanged`. The PSR-14 event :php:`\TYPO3\CMS\Core\Package\Event\PackagesMayHaveChangedEvent` is a marker event to ensure that Core is re-triggering the package ordering and package listings. .. attention:: This event is dispatched when an extension is changed in the :guilabel:`Extension Manager`, therefore starting with TYPO3 v11 this event is only dispatched in legacy installations, not in Composer-based installations. Use `installer events by Composer `__ for Composer-based installations. API === .. include:: /CodeSnippets/Events/Core/PackagesMayHaveChangedEvent.rst.txt