Explicitly state which RabbitMQ versions are supported

[johanrhodin]

It seems like RabbitMQ 3.7.16 can't use 0.4.3 reliably. It would be good to see that in an overview. (The issue was that all queues displayed as NaN.)

[noxdafox]

Hello,

the goal would be to support all versions from v3.7.x onwards but the things got a little bit complicated. RMQ slightly changed one of the behaviours which the queue deduplication relies upon. My initial plan was to maintain two separated releases for v3.7.x and v3.8.x. Nevertheless the change was introduced in v3.7.18 which was a "transition release".

Moreover, the behaviour mentioned above used to be in rabbitmq-common, it has been moved within rabbitmq-server internals. This makes me wonder whether RMQ devs are intending to remove that behaviour in the long run as they are planning to refactor the queues support in the upcoming versions. As I mentioned in #37 I am planning to reach out the devs community to ask what are the plans on the long run so I can adopt the plugin accordingly but right now I am a bit short of free time.

I will try to spin up a v3.7.16 cluster and see if I can reproduce the issue and fix it asap.

[noxdafox]

To answer your question: v0.4.3 minimum supported RMQ version is v3.7.17.

Version below v3.7.17 shall use the plugin v0.4.2. The only difference across the two versions is the support for new RMQ > v3.7.17.

I will update the README accordingly.

[noxdafox]

Readme updated. Please reopen this issue if is yet not clear or you encounter other issues related to version support.