6. Go to [Github release page](https://github.com/umap-project/umap/releases/new) and Generate release notes + paste it in `docs/changelog.md` + finish Github process for a new release
Update the [Dockerfile](https://gitlab.com/incubateur-territoires/startups/donnees-et-territoires/umap-dsfr-moncomptepro/-/blob/main/Dockerfile?ref_type=heads) with correct version and put a tag `YYYY.MM.DD` in order to deploy it to production.
We aim to support [Baseline](https://developer.mozilla.org/en-US/blog/baseline-evolution-on-mdn/) “Widely available” (implemented in major browsers within the last 30 months).
### Major (2.Y.Z)
* when we bump Django to a major version
* when we change how we store data (both in database and filesystem)