.0 is officially supported on Kubernetes versions <code>1.18.0</code> to <code>1.21.x</code>.</div></aside></div><p>A few of this release’s highlights:</p><h2 id=discovery-selectors>Discovery Selectors</h2><p>In previous Istio versions, Istio’s control plane has watched and processed updates for all Kubernetes resources it cares about in a cluster. This can be a scalability bottleneck in large clusters or clusters with rapid configuration changes. Discovery Selectors limit the set of resources that Isti