CHANGELOG: highlight metrics change in v3.1
@@ -326,6 +326,11 @@ See [upgrade 3.1](https://github.com/coreos/etcd/blob/master/Documentation/upgra
### Changed
+- Deprecated following gRPC metrics in favor of [go-grpc-prometheus](https://github.com/grpc-ecosystem/go-grpc-prometheus):
+ - `etcd_grpc_requests_total`
+ - `etcd_grpc_requests_failed_total`
+ - `etcd_grpc_active_streams`
+ - `etcd_grpc_unary_requests_duration_seconds`
- etcd uses default route IP if advertise URL is not given
- Cluster rejects removing members if quorum will be lost
- SRV records (e.g., infra1.example.com) must match the discovery domain (i.e., example.com) if no custom certificate authority is given
