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+## Version 1.3.20.0
+Compatible with OpenSearch 1.3.20
+
+### Maintenance
+* Increment version to 1.3.20. ([#1640](https://github.com/opensearch-project/alerting/pull/1640))
+* Remove dco and update artifact action to v4 ([#1735](https://github.com/opensearch-project/alerting/pull/1735))
+
+### Bug Fixes
+* Fix compilation error bug due to osd-core ([#1736](https://github.com/opensearch-project/alerting/pull/1736))
+
+### Documentation
+* Added 1.3.20 release notes. ([#1742](https://github.com/opensearch-project/alerting/pull/1742))
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