Hi Yannis,
It's awesome that Istio 1.9.0 will be compatible! Will any Istio 1.6+ version be compatible with the 1.3 release as was our original goal?
We had also talked about unbundling Istio. It would be great for the 1.3 release to include a kfdef config file that does not include Istio and will work with any Istio 1.6+ (all the way through 1.9.0) installed. Today we ask folks to remove the Istio entries from the kfdef config which may add some unnecessary friction.
Personally I'd take the approach of telling folks that they must have Istio 1.6+ installed to install Kubeflow, but for convenience we provide this configuration which includes Istio 1.9.0.
Thanks!
Bernd