Upgrade Policy for Istio


HI Team,

I have several questions for the upgrade scenario for Istio, Seems I can not find clear answer in our docs yet:

  1. What version span do we support when upgrade? do we support upgrade from 1.0.0 to 1.1 directly?

  2. 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?

  3. 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!

Iris Ding