Spring Integration 4.2 to 4.3 Migration Guide

Outbound Gateway within Chain

Previously, it was possible to specify a reply-channel on an <outbound-gateway> within a <chain>. It was completely ignored; the gateway's reply goes to the next chain element, or to the chain's output-channel if the gateway is the last element. This condition is now detected and disallowed. If you have such configuration, simply remove the reply-channel.

Redis Queue Inbound Gateway

The default serializer in the RedisQueueInboundGateway has been changed to a JdkSerializationRedisSerializer for compatibility with the RedisQueueOutboundGateway for client/server interaction scenarios. Previously it was (in the RedisQueueInboundGateway) a StringRedisSerializer by default; to restore that behavior provide a reference to a its bean.