Published versions of the OCX schema
The OCX versions available here are formally approved and published by the Consortium.
Version | Publish Date | Schema | Changelog | Documentation | Reason for change |
| 3.1.0 | 2025.07.01 | Version 3.1.0 | CHANGELOG | HTML Schema Documentation (zip archive) | Major new release, see the CHANGELOG. |
| 3.0.1 | 2024.07.01 | Version 3.0.1 | CHANGELOG | HTML Schema Documentation (zip archive) | Schema patch. Micro version update. |
| 3.0.0 | 2024.07.01 | Version 3.0.0 | CHANGELOG | HTML Schema Documentation (zip archive) | Major new release, see the CHANGELOG |
| 2.8.6 | 2021.06.10 | Version 2.8.6 | CHANGELOG | HTML Schema Documentation (zip archive) | The first officially available version of the OCX schema |
| 2.8.5 | 2020.03.16 | Version 2.8.5 | CHANGELOG | Unofficial pre-release (deprecated) |
UnitsML schema
| Version | Schema | Documentation |
| 0.9.18 | UnitsML Schema | UnitsML Guidelines Version 1.0 |