diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index b313b6b48f..b9e0482174 100644
--- a/docs/CHANGELOG.md
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@@ -13,6 +13,7 @@ sort: 15
 * FEATURE: add `-search.maxSamplesPerSeries` command-line flag for limiting the number of raw samples a single query can process per each time series. This option can protect from out of memory errors when a query processes tens of millions of raw samples per series. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1067).
 * FEATURE: add `-search.maxSamplesPerQuery` command-line flag for limiting the number of raw samples a single query can process across all the time series. This option can protect from heavy queries, which select too big number of raw samples. Thanks to @jiangxinlingdu for [the initial pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/1478).
 * FEATURE: improve performance for queries that process big number of time series and/or samples on systems with big number of CPU cores.
+* FEATURE: vmalert: expose `vmalert_alerting_rules_last_evaluation_samples` and `vmalert_recording_rules_last_evaluation_samples` metrics. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1494).
 
 * BUGFIX: fix corner cases for queries on time ranges exceeding 40 days. Previously some series can be missing in query results. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1486).
 * BUGFIX: vmselect: return dummy response at `/rules` page in the same way as for `/api/v1/rules` page. The `/rules` page is requested by Grafana 8. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1493) for details.