f you are upgrading from version 1.20:</p><pre><code class=language-shell data-expandlinks=true data-repo=istio>$ istioctl x precheck --from-version 1.20
Warning [IST0168] (DestinationRule default/tls) The configuration &#34;ENABLE_AUTO_SNI&#34; changed in release 1.20: previously, no SNI would be set; now it will be automatically set. Or, install with `--set compatibilityVersion=1.20` to retain the old default.
Error: Issues found when checking the cluster. Istio may not be safe to install or upgrade.
See 