Apache Camel 2.10.x and 2.9.x Lines Clean out Bugs
Camel 2.10.3 and 2.9.5 were the releases and as you can see the community is still developing the 2.9 stream for those who haven't migrated yet. That should continue to receive attention until Camel 2.11 arrives.
If you haven't upgraded to 2.10 yet, here is a long list of reasons why you should.
Also, here's some fun changes you can look forward to in 2.11.