ample, 1.6.0 or higher is required before you start the upgrade process to 1.7.x.</p></li><li><p>Your Istio installation was <a href=/v1.23/docs/setup/install/istioctl/>installed using istioctl</a>.</p></li></ul><h2 id=upgrade-steps>Upgrade steps</h2><div><aside class="callout warning"><div class=type><svg class="large-icon"><use xlink:href="/v1.23/img/icons.svg#callout-warning"/></svg></div><div class=content>Traffic disruption may occur during the upgrade process. To minimize the disruption, ensure
that a