On 26/01/2011 9:27PM, Matthias Radestock wrote: > - clients >= 2.2.0 will only work with brokers >= 2.2.0, except for the > .net client which can speak to older brokers if configured to speak AMQP > 0-8. I think you mean ">= 2.0.0" here. The Java and Erlang clients switched to AMQP 0-9-1 at version 2.0.0. Cheers, Simon