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UPGRADE-6.4.md

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UPGRADE FROM 6.3 to 6.4

Symfony 6.4 and Symfony 7.0 are released simultaneously at the end of November 2023. According to the Symfony release process, both versions have the same features, but Symfony 6.4 doesn't include any significant backwards compatibility changes. Minor backwards compatibility breaks are prefixed in this document with [BC BREAK], make sure your code is compatible with these entries before upgrading. Read more about this in the Symfony documentation.

Furthermore, Symfony 6.4 comes with a set of deprecation notices to help you prepare your code for Symfony 7.0. For the full set of deprecations, see the UPGRADE-7.0.md file on the 7.0 branch.

Table of Contents

Bundles

Bridges

Components

BrowserKit

  • Add argument $serverParameters to AbstractBrowser::click() and AbstractBrowser::clickLink()

Cache

  • [BC break] EarlyExpirationHandler no longer implements MessageHandlerInterface, rely on AsMessageHandler instead

DependencyInjection

  • Deprecate ContainerAwareInterface and ContainerAwareTrait, use dependency injection instead

    Before

    class MailingListService implements ContainerAwareInterface
{
    use ContainerAwareTrait;

    public function sendMails()
    {
        $mailer = $this->container->get('mailer');

        // ...
    }
}

    After

    use Symfony\Component\Mailer\MailerInterface;

class MailingListService
{
    public function __construct(
        private MailerInterface $mailer,
    ) {
    }

    public function sendMails()
    {
        $mailer = $this->mailer;

        // ...
    }
}

    To fetch services lazily, you can use a service subscriber.

DoctrineBridge

  • [BC Break] Add argument $buildDir to ProxyCacheWarmer::warmUp()
  • [BC Break] Add return type-hints to EntityFactory
  • Deprecate DbalLogger, use a middleware instead
  • Deprecate not constructing DoctrineDataCollector with an instance of DebugDataHolder
  • Deprecate DoctrineDataCollector::addLogger(), use a DebugDataHolder instead
  • Deprecate ContainerAwareLoader, use dependency injection in your fixtures instead
  • [BC Break] Change argument $lastUsed of DoctrineTokenProvider::updateToken() to accept DateTimeInterface

DomCrawler

  • Add argument $default to Crawler::attr()

ErrorHandler

  • [BC break] FlattenExceptionNormalizer no longer implements ContextAwareNormalizerInterface

Form

  • Deprecate using DateTime or DateTimeImmutable model data with a different timezone than configured with the model_timezone option in DateType, DateTimeType, and TimeType
  • Deprecate PostSetDataEvent::setData(), use PreSetDataEvent::setData() instead
  • Deprecate PostSubmitEvent::setData(), use PreSubmitDataEvent::setData() or SubmitDataEvent::setData() instead

FrameworkBundle

  • [BC break] Add native return type to Translator and to Application::reset()
  • Deprecate the integration of Doctrine annotations, either uninstall the doctrine/annotations package or disable the integration by setting framework.annotations to false
  • Deprecate not setting some config options, their defaults will change in Symfony 7.0:
option default Symfony <7.0 default in Symfony 7.0+
framework.http_method_override true false
framework.handle_all_throwables false true
framework.php_errors.log '%kernel.debug%' true
framework.session.cookie_secure false 'auto'
framework.session.cookie_samesite null 'lax'
framework.session.handler_id 'session.handler.native' null if save_path is not set, 'session.handler.native_file' otherwise
framework.uid.default_uuid_version 6 7
framework.uid.time_based_uuid_version 6 7
framework.validation.email_validation_mode 'loose' 'html5'
  • Deprecate framework.validation.enable_annotations, use framework.validation.enable_attributes instead
  • Deprecate framework.serializer.enable_annotations, use framework.serializer.enable_attributes instead
  • Deprecate the routing.loader.annotation service, use the routing.loader.attribute service instead
  • Deprecate the routing.loader.annotation.directory service, use the routing.loader.attribute.directory service instead
  • Deprecate the routing.loader.annotation.file service, use the routing.loader.attribute.file service instead
  • Deprecate AnnotatedRouteControllerLoader, use AttributeRouteControllerLoader instead

HttpFoundation

  • [BC break] Make HeaderBag::getDate(), Response::getDate(), getExpires() and getLastModified() return a DateTimeImmutable

HttpKernel

  • [BC break] BundleInterface no longer extends ContainerAwareInterface
  • [BC break] Add native return types to TraceableEventDispatcher and to MergeExtensionConfigurationPass
  • Deprecate Kernel::stripComments()
  • Deprecate UriSigner, use UriSigner from the HttpFoundation component instead
  • Deprecate FileLinkFormatter, use FileLinkFormatter from the ErrorHandler component instead

Messenger

  • Deprecate StopWorkerOnSignalsListener in favor of using the SignalableCommandInterface
  • Deprecate HandlerFailedException::getNestedExceptions(), HandlerFailedException::getNestedExceptionsOfClass() and DelayedMessageHandlingException::getExceptions() which are replaced by a new getWrappedExceptions() method

MonologBridge

  • [BC break] Add native return type to Logger::clear() and to DebugProcessor::clear()

PsrHttpMessageBridge

  • [BC break] PsrServerRequestResolver no longer implements ArgumentValueResolverInterface

RateLimiter

  • Deprecate SlidingWindow::getRetryAfter, use SlidingWindow::calculateTimeForTokens instead

Routing

  • [BC break] Add native return type to AnnotationClassLoader::setResolver()
  • Deprecate Doctrine annotations support in favor of native attributes
  • Deprecate passing an annotation reader as first argument to AnnotationClassLoader (new signature: __construct(?string $env = null))
  • Deprecate AnnotationClassLoader, use AttributeClassLoader instead
  • Deprecate AnnotationDirectoryLoader, use AttributeDirectoryLoader instead
  • Deprecate AnnotationFileLoader, use AttributeFileLoader instead

Security

  • [BC break] UserValueResolver no longer implements ArgumentValueResolverInterface
  • [BC break] Make PersistentToken immutable
  • Deprecate accepting only DateTime for TokenProviderInterface::updateToken(), use DateTimeInterface instead
  • [BC break] Add required string $secret parameter to the constructor of DefaultLoginRateLimiter

SecurityBundle

  • Deprecate the require_previous_session config option. Setting it has no effect anymore

Serializer

  • Deprecate Doctrine annotations support in favor of native attributes
  • Deprecate AnnotationLoader, use AttributeLoader instead

Templating

  • The component is deprecated and will be removed in 7.0, use Twig instead

Translator

  • [BC Break] Add argument $buildDir to DataCollectorTranslator::warmUp()

Validator

  • Deprecate Doctrine annotations support in favor of native attributes
  • Deprecate ValidatorBuilder::setDoctrineAnnotationReader()
  • Deprecate ValidatorBuilder::addDefaultDoctrineAnnotationReader()
  • Deprecate ValidatorBuilder::enableAnnotationMapping(), use ValidatorBuilder::enableAttributeMapping() instead
  • Deprecate ValidatorBuilder::disableAnnotationMapping(), use ValidatorBuilder::disableAttributeMapping() instead
  • Deprecate AnnotationLoader, use AttributeLoader instead

VarExporter

  • Deprecate per-property lazy-initializers

Workflow

  • Deprecate GuardEvent::getContext() method that will be removed in 7.0