Mastodon 4.x — End of Life

EOL soon
8 releases in this series0 CVEs

Mastodon 4.x is partially supported: only 4.7, 4.6, 4.5, 4.4 still receive security fixes. The most recent release in this series is 4.7.3. No CVE is currently tracked for Mastodon 4.x.

Mastodon 4.x — All releases

VersionReleasedActive supportEOL dateLatest patchStatusAlert me
4.7Aug 20, 2026—No4.7.3Active
4.6Jun 17, 2026—No4.6.9Active
4.5Nov 6, 2025—Feb 20, 20274.5.19Active
4.4Jul 8, 2025—Dec 17, 20264.4.26EOL soon
4.3Oct 8, 2024—May 6, 20264.3.23EOL
4.2Sep 21, 2023—Jan 8, 20264.2.29EOL
4.1Feb 10, 2023—Apr 8, 20254.1.25EOL
4.0Nov 14, 2022—Oct 31, 20234.0.15EOL

CVEs affecting Mastodon 4.x (0)

No CVEs tracked for Mastodon 4.x.

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Mastodon 4 EOL status
[![Mastodon 4 EOL status](https://eolcanary.com/badge/mastodon/4.svg)](https://eolcanary.com/explore/mastodon/4)

Frequently asked questions

Is Mastodon 4 end of life?

Partially. 4 of the 8 Mastodon 4.x releases have reached end of life. Still supported: 4.7, 4.6, 4.5, 4.4.

What CVEs affect Mastodon 4?

No CVEs are currently tracked for Mastodon 4.x in the NVD data we monitor.

What is the latest Mastodon 4 version?

The latest Mastodon 4.x patch release is 4.7.3, released on October 1, 2026. Always run the latest patch to benefit from all security fixes.

When was Mastodon 4 first released?

Mastodon 4.0 was released on November 14, 2022. See the full version timeline in the table above.

Is it safe to run Mastodon 4 in production?

Only on a supported release (4.7, 4.6, 4.5, 4.4). Make sure you run the latest patch (4.7.3) to have all security fixes applied.

Data sourced from endoflife.date · CVE data from NVD · EPSS from FIRST.org · KEV from CISA