Technical Documentation This site hosts technical details about the project source, API documentation and dependencies. The documentation is categorized per Grouper release: 5.x (active release branch) 4.x (active release branch) 2.6.x 2.5.x 2.4.0-SNAPSHOT (2.4.0 plus patches) 2.4.0 Release (2019-08-30) 2.2.x