Problem: The upstream community are replacing the existing centralised mixer approach for gathering metrics/telemetry and evaluating policies with an approach based on the integration of WebAssembly extensions within the Envoy/Proxy sidecars. 

The engineering issue 

https://issues.redhat.com/browse/OSSM-207

looks like a research issue, but there may be documentation impact. It could be as simple as a release notes item, or not.