 install Istio</a> using the in-cluster Operator or <code>istioctl install</code> command. Part of this change meant deprecating the old Helm charts in 1.5. Many new Istio features rely on the new installation method. As a result, Istio 1.6 doesn&rsquo;t include the old Helm installation charts.</p><p>Go to the <a href=/v1.20/news/releases/1.5.x/announcing-1.5/upgrade-notes/#control-plane-restructuring>Istio 1.5 Upgrade Notes</a> before you continue because Istio 1.5 introduced several changes not present i