History
Please read more about PDB versioning on our help page.
| Version | Date | Type | |
| 1-0 | 1998-09-23 | Initial release | No files available. |
| 1-1 | 2007-10-16 | Version format compliance | No files available. |
| 1-2 | 2011-07-13 | Version format compliance | No files available. |
| 1-3 | 2018-04-04 | Advisory, Data collection | No files available. |
| 1-4 | 2018-04-11 | Data collection | No files available. |
| 1-5 | 2024-02-07 | Advisory, Data collection, Database references, Derived calculations | No files available. |
| 1-6 | 2024-04-03 | Refinement description |
