> For the complete documentation index, see [llms.txt](https://doorkeeper.gitbook.io/guides/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doorkeeper.gitbook.io/guides/internals/upgrading.md).

# Upgrading

If you want to upgrade Doorkeeper to a new version, check out the [upgrading guides](https://github.com/doorkeeper-gem/doorkeeper/wiki/Migration-from-old-versions) and take a look at the [CHANGELOG](https://github.com/doorkeeper-gem/doorkeeper/blob/master/CHANGELOG.md).

Doorkeeper follows [semantic versioning](http://semver.org/).