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

  1. I think you can upgrade from 1.0.0 to 1.1, but add @duderino to double check :slight_smile:
  2. I’m not sure. Please see https://istio.io/docs/setup/kubernetes/upgrade/
  3. I’m not quite familiar with the Envoy span, though. Try to ask in the network or more general mailing lists?