Support Lifecycle

We track dependencies for the five most recent Mastodon branches to help administrators determine upgrade path and deployment options. Administrators should strive to run supported releases on supported platforms to give their users the best, and most secure, experience possible.

Any dependencies listed for development versions (nightly/alpha) of Mastodon are based on tracking the development process of the main branch on GitHub and the project Discord. These and are subject to change at any time as project requirements change.
MastodonStatusEnd of Life
4.6Development Branch
4.5Supported Release
4.4Supported Release
4.3Pending EOL2026-05-06
4.2End of Life2026-01-08
4.1End of Life2025-04-08
4.0End of Life2023-10-31
3.xEnd of Life2023-12-31

References: Mastodon Security Policy

For the purposes of this document, when applied to dependencies the term "End of Life" is standardized to mean when there are no further updates of any kind, and/or no support available for a released version of Mastodon or it's dependencies.
End of Life versions of Mastodon do not receive any features, bug fixes, and generally no security updates except at the discretion of the development team.