kConfiguration istio-galley -n istio-system
</code></pre><h2 id=change-the-readiness-port-of-gateways>Change the readiness port of gateways</h2><p>If you are using the <code>15020</code> port to check the health of your Istio ingress gateway with your Kubernetes network load balancer, change the port from <code>15020</code> to <code>15021</code>.</p><h2 id=removal-of-legacy-helm-charts>Removal of legacy Helm charts</h2><p>Istio 1.4 introduced a <a href=/v1.20/blog/2019/introducing-istio-operator/>new way to