getIO(); $composer = $event->getComposer(); $typo3Package = $composer->getRepositoryManager()->getLocalRepository()->findPackage('typo3/cms-core', 'dev-master'); if ($typo3Package) { $io->warning(sprintf('You are installing a development version of TYPO3 ("%s").', $typo3Package->getVersion())); $io->warning('TYPO3 Console might work, but might also fail at any point.'); $io->warning('Use at your own risk!'); return $io->askConfirmation('I have read and understood, that errors may occur. (y/N) ', false); } return true; } }