Istio 1.1 Released

Placing the CRDs in their own Helm chart preserves the data continuity of the custom resource content during the upgrade process and further enables Istio to evolve beyond a Helm-based installation. You can now connect multiple clusters simply using their ingress gateways without needing pod-level VPNs, deploy control planes in each cluster for high-availability cases, and span a namespace across several clusters to create global namespaces. Added support of authorization for TCP services in addition to HTTP and gRPC services.

Source: istio.io