Spring AMQP 1.2.0 for Java was just launched this week. For those of you who aren't familiar with it, it's basically a project that applies Spring Framework concepts to building AMQP messaging applications. It uses the RabbitMQ queue as its default client, which is also under the umbrella of SpringSource.
The new version will update the RabbitMQ client to version 3.1.x and keep compatibility with earlier versions as well. Spring AMQP 1.2 upgrades the JSON message converter, Jackson, to version 2.x, and AMQP is now available as the transport for the RPC calls in Spring remoting techniques.
See all of the new changes here.