.. include:: /Includes.rst.txt .. _changelog-Breaking-81735-GetRidOfSysextsv: ======================================= Breaking: #81735 - Get rid of sysext:sv ======================================= See :issue:`81735` Description =========== The AuthenticationService has been moved into system extensios `core`. Class aliases are in place and will be removed with TYPO3 v10. Impact ====== The namespace of the classes :php:`AbstractAuthenticationService` and :php:`AuthenticationService` changed from :php:`\TYPO3\CMS\Sv` to :php:`\TYPO3\CMS\Core\Authentication`. Affected Installations ====================== All instances, that use or extend the mentioned classes. Migration ========= Use the new namespaces as mentioned above. Related ======= - :ref:`changelog-MoveOfServicesListReportFromSvToReports` More Information ================ - :ref:`t3coreapi:services-developer-service-api` in "TYPO3 Explained" .. index:: Backend, PHP-API, FullyScanned, ext:sv