Breaking: #84131 - Removed classes of language extension 

Description 

The language pack update module - formerly known as "Admin Tools" -> "Language" module has been moved to "Maintenance" -> "Manage language packs".

PHP classes implementing the old solution have been removed:

• \TYPO3\CMS\Lang\Command\LanguageUpdateCommand
• \TYPO3\CMS\Lang\Controller\LanguageController
• \TYPO3\CMS\Lang\Domain\Model\Extension
• \TYPO3\CMS\Lang\Domain\Model\Language
• \TYPO3\CMS\Lang\Domain\Repository\ExtensionRepository
• \TYPO3\CMS\Lang\Domain\Repository\LanguageRepository
• \TYPO3\CMS\Lang\Exception
• \TYPO3\CMS\Lang\Exception\Language
• \TYPO3\CMS\Lang\Exception\Ter
• \TYPO3\CMS\Lang\Exception\XmlParser
• \TYPO3\CMS\Lang\Service\RegistryService
• \TYPO3\CMS\Lang\Service\TerService
• \TYPO3\CMS\Lang\Service\TranslationService
• \TYPO3\CMS\Lang\View\AbstractJsonView
• \TYPO3\CMS\Lang\View\Language\ActivateLanguageJson
• \TYPO3\CMS\Lang\View\Language\DeactivateLanguageJson
• \TYPO3\CMS\Lang\View\Language\GetTranslationsJson
• \TYPO3\CMS\Lang\View\Language\RemoveLanguageJson
• \TYPO3\CMS\Lang\View\Language\UpdateLanguageJson
• \TYPO3\CMS\Lang\View\Language\UpdateTranslationJson

Impact 

Using one of the mentioned classes will throw a fatal PHP error.

Affected Installations 

It is unlikely extensions used the mentioned classes, the extension scanner will find usages. The only well-known usage of one of this classes is the signal/slot to override the base download url of language packs per extension and the registration did not change and should still be done like this:

/** @var \TYPO3\CMS\Extbase\SignalSlot\Dispatcher $signalSlotDispatcher */
$signalSlotDispatcher = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(\TYPO3\CMS\Extbase\SignalSlot\Dispatcher::class);

$signalSlotDispatcher->connect(
    'TYPO3\\CMS\\Lang\\Service\\TranslationService',
    'postProcessMirrorUrl',
    \Company\Extension\Slots\CustomMirror::class,
    'postProcessMirrorUrl'
);

Migration 

No migration available.