History
Please read more about PDB versioning on our help page.
| Version | Date | Type | |
| 1-0 | 2005-01-11 | Initial release | No files available. |
| 1-1 | 2008-04-27 | Version format compliance | No files available. |
| 1-2 | 2011-07-13 | Version format compliance | No files available. |
| 1-3 | 2021-02-03 | Database references, Derived calculations, Structure summary | No files available. |
| 1-4 | 2023-12-27 | Advisory, Data collection, Database references |
