I have several questions for the upgrade scenario for Istio, Seems I can not find clear answer in our docs yet:
What version span do we support when upgrade? do we support upgrade from 1.0.0 to 1.1 directly?
When upgrade, how about the existed crd resources I defined? Do they suppose to work without any change with the new crd in latest istio version?
How about Envoy version span do we support? Can I only upgrade control plane?
Thanks a lot if some one can share some lights there!