History
Please read more about PDB versioning on our help page.
| Version | Date | Type | |
| 1-0 | 2004-12-21 | Initial release | No files available. |
| 1-1 | 2008-04-26 | Version format compliance | No files available. |
| 1-2 | 2011-07-13 | Derived calculations, Version format compliance | No files available. |
| 1-3 | 2021-10-20 | Database references, Derived calculations | No files available. |
| 1-4 | 2023-12-27 | Data collection |
