This release introduces support for a RevisionBased strategy, which is based on Istio's canary control plane upgrade procedure. This enables a new Istio control plane to be created alongside the existing Istio control plane, so that workloads may be migrated incrementally. This strategy is in addition to the InPlace upgrade strategy, which was the only supported approach for upgrading Red Hat OpenShift Service Mesh 2.6 and earlier releases. The upgrade strategy is configured using the "spec.updateStrategy" of the "Istio" resource.