diff --git a/CHANGELOG.md b/CHANGELOG.md
index b8f4785457b..aa48b3d80e1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -18,6 +18,7 @@ We use *breaking* word for marking changes that are not backward compatible (rel
 - [#1573](https://github.com/thanos-io/thanos/pull/1573) `AliYun OSS` object storage, see [documents](docs/storage.md#aliyun-oss) for further information.
 - [#1680](https://github.com/thanos-io/thanos/pull/1680) Add a new `--http-grace-period` CLI option to components which serve HTTP to set how long to wait until HTTP Server shuts down.
 - [#1712](https://github.com/thanos-io/thanos/pull/1712) Rename flag on bucket web component from `--listen` to `--http-address` to match other components.
+- [#1733](https://github.com/thanos-io/thanos/pull/1733) New metric `thanos_compactor_iterations_total` on Thanos Compactor which shows the number of successful iterations
 
 ### Fixed