trong> an issue with the <code>destination_service</code> label in HTTP related metrics incorrectly falling back to <code>request.host</code> which can cause a metric cardinality explosion for ingress traffic. (<a href=https://github.com/istio/istio/issues/18818>Issue 18818</a>)</li></ul><h2 id=minor-enhancements>Minor enhancements</h2><ul><li><strong>Improved</strong> load-shedding options for Mixer. Added support for a <code>requests-per-second</code> threshold for load-shedding enforcement. This allows o