Release notes for edge-20.5.3
+## edge-20.5.3
+
+* Controller
+ * Added a Grafana dashboard for tracking multi-cluster traffic metrics
+ * Added health checks for the Grafana add-on, under a separate section
+ * Fixed issues when updating a remote multi-cluster gateway
+
+* Proxy
+ * Added special special handling for I/O errors in HTTP responses so that an
+ `errno` label is included to describe the underlying errors in the proxy's
+ metrics
+
+* Internal
+ * Started gathering stats of CI runs for aggregating CI health metrics
+
## edge-20.5.2
This edge release contains everything required to get up and running with
