I agree, it would be convenient to have something similar to what Nova has: https://github.com/openstack/nova/blob/master/nova/api/openstack/compute/versions.py#L59-L60 We should put some resources behind implementing micro versioning and we could end up with something similar. It would also be nice to have the agents report their version, so it bubbles up into the agent-list REST API calls. -- Sean M. Collins