diff --git a/CHANGELOG.md b/CHANGELOG.md
index ab3704c03..05345e9df 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -20,6 +20,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Speed up metrics computation by optimizing segment validation, forbid NaNs during metrics computation ([#1338](https://github.com/tinkoff-ai/etna/pull/1338))
 - Unify errors, warnings and checks in models ([#1312](https://github.com/tinkoff-ai/etna/pull/1312))
 - Remove upper limitation on version of numba ([#1321](https://github.com/tinkoff-ai/etna/pull/1321))
+- Optimize `TSDataset.describe` and `TSDataset.info` by vectorization ([#1344](https://github.com/tinkoff-ai/etna/pull/1344))
 
 ### Fixed
 - Pipeline ensembles fail in `etna forecast` CLI ([#1331](https://github.com/tinkoff-ai/etna/pull/1331))