prerequisites:</p><ul><li><p>The installed Istio version is no more than one minor version less than the upgrade version.
For example, 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=/v1.10/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="/v1.10/img/icons.svg#callout-warning"/><