UPGRADE-6.1.md

UPGRADE FROM 6.0 to 6.1

All components

• Deprecate requiring the "symfony/symfony" package; replace it with standalone components instead
• Public and protected properties are now considered final; instead of overriding a property, consider setting its value in the constructor

Console

• Deprecate Command::$defaultName and Command::$defaultDescription, use the AsCommand attribute instead

HttpKernel

• Deprecate StreamedResponseListener, it's not needed anymore

Serializer

• Deprecate ContextAwareNormalizerInterface, use NormalizerInterface instead
• Deprecate ContextAwareDenormalizerInterface, use DenormalizerInterface instead
• Deprecate ContextAwareEncoderInterface, use EncoderInterface instead
• Deprecate ContextAwareDecoderInterface, use DecoderInterface instead
• Deprecate supporting denormalization for AbstractUid in UidNormalizer, use one of AbstractUid child class instead
• Deprecate denormalizing to an abstract class in UidNormalizer

Validator

• Deprecate Constraint::$errorNames, use Constraint::ERROR_NAMES instead
• Deprecate constraint ExpressionLanguageSyntax, use ExpressionSyntax instead
• Implementing the ConstraintViolationInterface or ConstraintViolationListInterface without implementing the __toString() method is deprecated