History
Please read more about PDB versioning on our help page.
| Version | Date | Type | |
| 1-0 | 2004-02-10 | Initial release | No files available. |
| 1-1 | 2008-04-29 | Version format compliance | No files available. |
| 1-2 | 2011-07-13 | Advisory, Version format compliance | No files available. |
| 1-3 | 2017-10-11 | Refinement description | No files available. |
| 1-4 | 2021-10-27 | Database references, Derived calculations | No files available. |
| 1-5 | 2023-08-23 | Data collection, Refinement description |
