UPGRADE FROM 6.1 to 6.2

FrameworkBundle

• Deprecate the Symfony\Component\Serializer\Normalizer\ObjectNormalizer and Symfony\Component\Serializer\Normalizer\PropertyNormalizer autowiring aliases, type-hint against Symfony\Component\Serializer\Normalizer\NormalizerInterface or implement NormalizerAwareInterface instead
• Deprecate AbstractController::renderForm(), use render() instead

HttpFoundation

• Deprecate Request::getContentType(), use Request::getContentTypeFormat() instead

Ldap

• Deprecate {username} parameter use in favour of {user_identifier}

Mailer

• Deprecate the OhMySMTP transport, use MailPace instead

Security

• Add maximum username length enforcement of 4096 characters in UserBadge to prevent session storage flooding
• Deprecate the Symfony\Component\Security\Core\Security class and service, use Symfony\Bundle\SecurityBundle\Security\Security instead
• Passing empty username or password parameter when using JsonLoginAuthenticator is not supported anymore
• Add $lifetime parameter to LoginLinkHandlerInterface::createLoginLink()

Validator

• Deprecate the loose e-mail validation mode, use html5 instead