>reviews</code> service, Istio routes requests to all available versions randomly, and sometimes the output contains star ratings and sometimes it doesn&rsquo;t.</p></li><li><p>Set the default version for all services to v1.</p><div><a data-skipendnotes=true style=display:none href=https://raw.githubusercontent.com/istio/istio/release-1.7/samples/bookinfo/networking/virtual-service-all-v1.yaml>Zip</a><pre><code class=language-bash data-expandlinks=true data-repo=istio>$ kubectl apply -f @samples/bookinfo/ne