3.0.0

This release provides the integration of jms/serializer v2.0 into Symfony.

More info about jms/serializer v2.0 on https://www.goetas.com/blog/whats-new-in-jmsserializer-v20 and https://github.com/schmittjoh/serializer/releases/tag/2.0.0

Implemented enhancements:

• Add autoconfigure for handlers #671 (magnetik)

Fixed bugs:

• Lazy services - Final classes cannot be proxied by ProxyManager #690

Closed issues:

• jms_serializer directory in cache is not writable #640
• Provided class "JMS\Serializer\Handler\ArrayCollectionHandler" is final and cannot be proxied #692
• Hard cache removal - first JSON serialization has an unusual result #682
• Avoiding the circular reference stop #679
• Annotation Group not working on Entity using Symfony 4 #669
• Regression since 2.4.1 #663
• Example code for "Changing the Object Constructor" section does not show on the web page. #601

Merged pull requests:

• setSerializeNull option is available only on the serialization context #694 (goetas)
• remove lazy services, they are already lazy in many contexts #691 (goetas)
• Enhancement: Normalize composer.json #677 (localheinz)
• Enhancement: Keep packages sorted in composer.json #676 (localheinz)
• Fix Constructors configuration section #675 (kinow)