reate namespace istio-system
$ kubectl apply -n istio-system -f control-plane-1-8-0.yaml
$ kubectl apply -n istio-system -f gateways.yaml
</code></pre></li></ol><p>Verify that the operator and Istio control plane are installed and running.</p><h3 id=upgrade-with-operator>Upgrade with operator</h3><p>Let&rsquo;s assume that the target version is 1.8.1.</p><ol><li><p>Download the Istio 1.8.1 release and use the <code>istioctl</code> from that release to install the Istio 1.8.1 operator:</p><pre><code class=la