Upgrade is not compatible with revisions (#8447)
Upgrade is not compatible with revisions (#8447)

* Upgrade is not compatible with revisions

* correction

* fix typo

Co-authored-by: Frank Budinsky <eff2b2321921dd21161b5817c477702c05bb637b@ca.ibm.com>

Co-authored-by: Frank Budinsky <eff2b2321921dd21161b5817c477702c05bb637b@ca.ibm.com>
istio/istio.io,istio/istio.io,istio/istio.io,istio/istio.io,istio/istio.io,istio/istio.io,istio/istio.io