| Availability: |
| Release Coordinator: |
| System Requirements: |
| Documentation: |
| Project AtlasOffline: |
| Project AtlasAnalysis: |
| Project AtlasConditions: |
| Project AtlasCore: |
| Project AtlasEvent: |
| Project AtlasReconstruction: |
| Project AtlasSimulation: |
| Project AtlasTrigger: |
| Project DetCommon: |
| Status: |
| Other comments: equivalent to 20.1.5 but based on ROOT 6 |