History
Please read more about PDB versioning on our help page.
| Version | Date | Type | |
| 1-0 | 2007-04-24 | Initial release | No files available. |
| 1-1 | 2007-10-16 | Version format compliance | No files available. |
| 1-2 | 2011-07-13 | Advisory, Version format compliance | No files available. |
| 1-3 | 2019-12-11 | Advisory, Derived calculations, Source and taxonomy | No files available. |
| 1-4 | 2023-10-25 | Data collection, Database references, Derived calculations, Refinement description |
