2. What’s New
2.1. Changes in 2.4 Since 2.3
This section describes the changes between version 2.4 and version 2.4. See Change History for changes in previous versions.
2.1.1. @RabbitListener Changes
MessageProperties is now available for argument matching.
See Annotated Endpoint Method Signature for more information.
Async reply types now include CompleteableFuture
See Asynchronous @RabbitListener Return Types for more information.
MessageConverter s can now return Optional.empty() for a null value; this is currently implemented by the Jackson2JsonMessageConverter.
See Converting from a Message for more information.
2.1.2. RabbitAdmin Changes
A new property recoverManualDeclarations allows recovery of manually declared queues/exchanges/bindings.
See Recovering Auto-Delete Declarations for more information.
2.1.3. Remoting Support
Support of remoting using Spring Framework’s RMI support is deprecated and will be removed in 3.0. See Spring Remoting with AMQP for more information.
2.1.4. Message Converter Changes
The Jackson2JsonMessageConverter can now determine the charset from the contentEncoding header.
See Jackson2JsonMessageConverter for more information.