From 0.13 to ??? ================ - If you have implemented your own ObjectConstructor, you need to add the DeserializationContext as an additional parameter for the ``construct`` method. From 0.11 to 0.12 ================= - GraphNavigator::detachObject has been removed, you can directly use Context::stopVisiting instead. - VisitorInterface::getNavigator was deprecated, instead use Context::accept - Serializer::setGroups, Serializer::setExclusionStrategy and Serializer::setVersion were removed, these settings must now be passed as part of a new Context object. Before: $serializer->setVersion(1); $serializer->serialize($data, 'json'); After: $serializer->serialize($data, 'json', SerializationContext::create()->setVersion(1)); - All visit??? methods of the VisitorInterface, now require a third argument, the Context; the context is for example passed as an additional argument to handlers, exclusion strategies, and also available in event listeners.