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Mastodon

Active
CMS & Content Latest Version: 4.5.6 Latest Release: Feb 3, 2026

Mastodon is a free, decentralized social networking platform based on the ActivityPub protocol.

Versions

14

Latest Version

4.5.6

Active Support

3

EOL

11

Lifecycle Timeline

Today
4.5
4.5
4.4
4.4
4.3
4.3
4.2
4.2
4.1
4.1
4.0
4.0
3.5
3.5
3.4
3.4
3.3
3.3
3.2
3.2
Active SupportSecurity SupportEOL

Versions

ReleaseRelease DateActive SupportEOLLatest VersionLTSStatus
4.5Nov 6, 2025-No4.5.6No
Active
4.4Jul 8, 2025-No4.4.13No
Active
4.3Oct 8, 2024-May 6, 20264.3.19No
Active
4.2Sep 21, 2023-Jan 8, 20264.2.29No
EOL
4.1Feb 10, 2023-Apr 8, 20254.1.25No
EOL
4.0Nov 14, 2022-Oct 31, 20234.0.15No
EOL
3.5Mar 30, 2022-Dec 31, 20233.5.19No
EOL
3.4May 16, 2021-Nov 6, 20223.4.10No
EOL
3.3Dec 27, 2020-May 26, 20223.3.3No
EOL
3.2Jul 27, 2020-Yes3.2.2No
EOL
3.1Feb 9, 2020-Yes3.1.5No
EOL
3.0Oct 3, 2019-Yes3.0.2No
EOL
2Oct 18, 2017-Yes2.9.4No
EOL
1Feb 5, 2017-Yes1.6.1No
EOL

Frequently Asked Questions

Which versions of Mastodon have reached end of life?
The following Mastodon versions have reached end of life and no longer receive security updates: 4.2, 4.1, 4.0, 3.5, 3.4, 3.3, 3.2, 3.1 (and 3 more). It is recommended to upgrade to a supported version.
Is it safe to continue using Mastodon 4.2?
Mastodon 4.2 has reached end of life and no longer receives security patches or bug fixes. Continuing to use it may expose your systems to known vulnerabilities. We strongly recommend upgrading to a supported version.
What is the latest version of Mastodon?
The latest version of Mastodon is 4.5.6, released in the 4.5 release cycle.
How many versions of Mastodon are currently supported?
Mastodon currently has 3 actively supported version(s): 4.5, 4.4, 4.3.
When does Mastodon 4.5 reach end of life?
Mastodon 4.5 does not have a specific end-of-life date announced yet.
What should I do when Mastodon reaches end of life?
When a Mastodon version reaches end of life, you should: 1) Plan your migration to a supported version as soon as possible. 2) Review the release notes for breaking changes. 3) Test your applications thoroughly in a staging environment. 4) Update your dependencies to ensure compatibility with the new version.