ades from Istio 1.6 to Istio 1.7. This has been fixed so that these upgrades no longer cause downtime. Note that, as a trade off, upgrading from Istio 1.7.x to Istio 1.7.5 still causes downtime in any existing 1.6 proxies; if you are in this scenario you may set the <code>PILOT_ENABLE_TLS_XDS_DYNAMIC_TYPES</code> environment variable to false in Istiod to retain the previous behavior. (<a href=https://github.com/istio/istio/issues/28120>Issue #28120</a>)</p></li><li><p><strong>Fixed</strong> missing listene