CHANGELOG: add "metrics" fix changes

Signed-off-by: Gyuho Lee <gyuhox@gmail.com>

CHANGELOG-3.2.md

@@ -9,6 +9,10 @@ See [code changes](https://github.com/coreos/etcd/compare/v3.2.17...v3.2.18) and
   - Previously, etcd fast-forwards election ticks on server start, with only one tick left for leader election. This is to speed up start phase, without having to wait until all election ticks elapse. Advancing election ticks is useful for cross datacenter deployments with larger election timeouts. However, it was affecting cluster availability if the last tick elapses before leader contacts the restarted node.
   - Now, when etcd restarts, it adjusts election ticks with more than one tick left, thus more time for leader to prevent disruptive restart.
 
+### Fixed: metrics
+
+- Add missing [`etcd_network_peer_sent_failures_total` count](https://github.com/coreos/etcd/pull/9437).
+
 
 ## [v3.2.17](https://github.com/coreos/etcd/releases/tag/v3.2.17) (2018-03-08)
 

CHANGELOG-3.3.md

@@ -9,6 +9,10 @@ See [code changes](https://github.com/coreos/etcd/compare/v3.3.2...v3.3.3) and [
   - Previously, etcd fast-forwards election ticks on server start, with only one tick left for leader election. This is to speed up start phase, without having to wait until all election ticks elapse. Advancing election ticks is useful for cross datacenter deployments with larger election timeouts. However, it was affecting cluster availability if the last tick elapses before leader contacts the restarted node.
   - Now, when etcd restarts, it adjusts election ticks with more than one tick left, thus more time for leader to prevent disruptive restart.
 
+### Fixed: metrics
+
+- Add missing [`etcd_network_peer_sent_failures_total` count](https://github.com/coreos/etcd/pull/9437).
+
 
 ## [v3.3.2](https://github.com/coreos/etcd/releases/tag/v3.3.2) (2018-03-08)
 

CHANGELOG-3.4.md

@@ -35,6 +35,7 @@ See [code changes](https://github.com/coreos/etcd/compare/v3.3.0...v3.4.0) and [
   - e.g. exit with error on `ETCD_NAME=abc etcd --name=def`.
   - e.g. exit with error on `ETCD_INITIAL_CLUSTER_TOKEN=abc etcd --initial-cluster-token=def`.
   - e.g. exit with error on `ETCDCTL_ENDPOINTS=abc.com ETCDCTL_API=3 etcdctl endpoint health --endpoints=def.com`.
+- Change [`etcdserverpb.AuthRoleRevokePermissionRequest/key,range_end` fields type from `string` to `bytes`](https://github.com/coreos/etcd/pull/9433).
 - Move `"github.com/coreos/etcd/snap"` to [`"github.com/coreos/etcd/raftsnap"`](https://github.com/coreos/etcd/pull/9211).
 - Move `"github.com/coreos/etcd/etcdserver/auth"` to [`"github.com/coreos/etcd/etcdserver/v2auth"`](https://github.com/coreos/etcd/pull/9275).
 - Move `"github.com/coreos/etcd/error"` to [`"github.com/coreos/etcd/etcdserver/v2error"`](https://github.com/coreos/etcd/pull/9274).
@@ -95,6 +96,10 @@ See [code changes](https://github.com/coreos/etcd/compare/v3.3.0...v3.4.0) and [
 
 - Add [`etcd_debugging_mvcc_db_total_size_in_use_in_bytes`](https://github.com/coreos/etcd/pull/9256) Prometheus metric.
 
+### Fixed: metrics
+
+- Add missing [`etcd_network_peer_sent_failures_total` count](https://github.com/coreos/etcd/pull/9437).
+
 ### Added: gRPC gateway
 
 - Replace [gRPC gateway](https://github.com/grpc-ecosystem/grpc-gateway) endpoint with [`/v3`](https://github.com/coreos/etcd/pull/9298).