Release from staging to master 2024-03-15.

changelog.md

@@ -6,11 +6,15 @@ Starting after v5.0.0 release, updates will be declared for schemas independentl
 and (starting with v4.0.0) this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html). Unreleased changes may be indicated under the `Unreleased` heading.
 
 ## [Unreleased](https://github.com/HumanCellAtlas/metadata-schema/tree/staging)
+## [Released](https://github.com/HumanCellAtlas/metadata-schema/)
 
 ### [type/project/project.json - v19.0.0] - 2024-03-15
 ### Added
 Added DUOS id field. Fixes #1550
 
+### [type/project/project.json - v18.0.0] - 2024-03-04
+### Added
+Added data_use_restriction field
 
 ### [type/project/project.json - v18.0.0] - 2024-03-04
 ### Added