diff --git a/CHANGELOG-3.3.md b/CHANGELOG-3.3.md
index 370996a60..adb2640cd 100644
--- a/CHANGELOG-3.3.md
+++ b/CHANGELOG-3.3.md
@@ -8,6 +8,19 @@ The minimum recommended etcd versions to run in **production** are 3.1.11+, 3.2.
 <hr>
 
 
+## v3.3.18 (2019-TBD)
+
+### Metrics, Monitoring
+
+See [List of metrics](https://github.com/etcd-io/etcd/tree/master/Documentation/metrics) for all metrics per release.
+
+Note that any `etcd_debugging_*` metrics are experimental and subject to change.
+
+- Add [`etcd_cluster_version`](https://github.com/etcd-io/etcd/pull/11261) Prometheus metric.
+
+<hr>
+
+
 ## [v3.3.17](https://github.com/etcd-io/etcd/releases/tag/v3.3.17) (2019-10-11)
 
 See [code changes](https://github.com/etcd-io/etcd/compare/v3.3.16...v3.3.17) and [v3.3 upgrade guide](https://github.com/etcd-io/etcd/blob/master/Documentation/upgrades/upgrade_3_3.md) for any breaking changes.