# CellBase Versioning

CellBase uses [semantic versioning](https://semver.org/):

|               | Features might include...                              | Backwards compatible? | Example   |
| ------------- | ------------------------------------------------------ | --------------------- | --------- |
| Major release | Changes to the data model, or physical database schema | NO                    | **5**.0.0 |
| Minor release | Additions to the API. updates to data parsers, etc     | Yes                   | 5.**1**.0 |
| Patch release | Bug fixes                                              | Yes                   | 5.0.**1** |

Traditionally a new CellBase version is released a few times a year.

See more details:

* Software releases: [https://github.com/opencb/cellbase/releases](https://github.com/opencb/cellbase/releases)
* Data: [Data sources and species](http://docs.opencb.org/display/cellbase/Data+sources+and+species)
