vice-version">Service Version</dt><dd role="definition" aria-labelledby="service-version"><p>Distinct variants of a <a href="#service">service</a>, typically backed by a different versions of a <a href="#workload">workload</a> binary. Common scenarios where multiple <a href="#service-version">service versions</a> may be used include A/B testing, canary rollouts, etc. Each service has a default version.</p></dd><dt id="source">Source</dt><dd role="definition" aria-labelledby="source"><p>The downstream client