o=istio>$ istioctl uninstall --revision usergroup-2
$ kubectl delete ns app-ns-2 app-ns-3 usergroup-2
</code></pre></li></ol><div><aside class="callout warning"><div class=type><svg class="large-icon"><use xlink:href="/v1.16/img/icons.svg#callout-warning"/></svg></div><div class=content>A Cluster Administrator must make sure that Mesh Administrators DO NOT have permission to invoke the global <code>istioctl uninstall --purge</code> command,
because that would uninstall all control planes in the cluster.</di