 is improved through the added support for pluggable root certificate rotation.</p><h3 id=startupprobe-in-sidecar-containers><code>StartupProbe</code> in Sidecar Containers</h3><p>To enhance pod startup times, Istio now includes a <code>startupProbe</code> in sidecar containers by default. This proactive
measure allows for aggressive polling during the initial phase without persisting throughout the pod&rsquo;s lifecycle,
potentially reducing startup times by an average of one second and improving overall r