History
Please read more about PDB versioning on our help page.
| Version | Date | Type | |
| 1-0 | 1999-08-27 | Initial release | No files available. |
| 1-1 | 2008-04-01 | Version format compliance | No files available. |
| 1-2 | 2011-07-13 | Version format compliance | No files available. |
| 1-3 | 2017-11-29 | Derived calculations | |
| 2-0 | 2019-12-25 | Database references, Derived calculations, Polymer sequence | No files available. |
| 2-1 | 2023-12-27 | Data collection, Database references |
