update changelog

Author: jennyhliu

CHANGELOG.md

@@ -6,6 +6,8 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 
 ## Unreleased
 
+## [v15.0.1] 2023-04-20
+
 ### Changed
 
 - **CUMULUS-3279**
@@ -6894,7 +6896,8 @@ Note: There was an issue publishing 1.12.0. Upgrade to 1.12.1.
 
 ## [v1.0.0] - 2018-02-23
 
-[unreleased]: https://github.com/nasa/cumulus/compare/v15.0.0...HEAD
+[unreleased]: https://github.com/nasa/cumulus/compare/v15.0.1...HEAD
+[v15.0.1]: https://github.com/nasa/cumulus/compare/v15.0.0...v15.0.1
 [v15.0.0]: https://github.com/nasa/cumulus/compare/v14.1.0...v15.0.0
 [v14.1.0]: https://github.com/nasa/cumulus/compare/v14.0.0...v14.1.0
 [v14.0.0]: https://github.com/nasa/cumulus/compare/v13.4.0...v14.0.0