History
Please read more about PDB versioning on our help page.
| Version | Date | Type | |
| 1-0 | 2006-01-13 | Initial release | No files available. |
| 1-1 | 2011-05-08 | Version format compliance | No files available. |
| 1-2 | 2011-07-13 | Version format compliance | No files available. |
| 1-3 | 2018-12-12 | Data collection, Database references, Source and taxonomy, Structure summary | No files available. |
| 1-4 | 2023-12-13 | Data collection, Database references, Other, Refinement description |
