Mastodon end-of-life: support & EOL dates for every release
Mastodon · Comms / Social · 2 supported · 7 end-of-life · updated October 2026 · what is end-of-life? →
This is when each Mastodon release line stops receiving security updates. 2 release lines are still supported — the next to reach end-of-life is Mastodon 4.4 on 17 Dec 2026. Running an end-of-life version means new vulnerabilities stay unpatched.
Mastodon support timeline
Each release line and the date it reaches end-of-life — newest first.
| Release | Latest version | End-of-life | Status |
|---|---|---|---|
| Mastodon 4.5 | 4.5.19 | 20 Feb 2027 · in 4 mo | Ends soon |
| Mastodon 4.4 | 4.4.26 | 17 Dec 2026 · in 2 mo | Ends soon |
| Mastodon 4.3 | 4.3.23 | 6 May 2026 | End of life |
| Mastodon 4.2 | 4.2.29 | 8 Jan 2026 | End of life |
| Mastodon 4.1 | 4.1.25 | 8 Apr 2025 | End of life |
| Mastodon 3.5 | 3.5.19 | 31 Dec 2023 | End of life |
| Mastodon 4.0 | 4.0.15 | 31 Oct 2023 | End of life |
| Mastodon 3.4 | 3.4.10 | 6 Nov 2022 | End of life |
| Mastodon 3.3 | 3.3.3 | 26 May 2022 | End of life |
Which Mastodon version should I run?
The safest choice is the latest supported release, 4.7.3. If you're on an end-of-life line, plan an upgrade to a supported one before security updates stop. See Mastodon's full security status →
Get warned before Mastodon reaches end-of-life
End-of-life dates are easy to miss until it's too late. Monitor Mastodon on IsItPatched and we'll email you before the release line you run stops getting security updates — free, no account needed to start.
Mastodon end-of-life — frequently asked
What Mastodon versions are still supported?
As of October 2026, these Mastodon release lines still receive security updates: 4.5, 4.4. The latest supported release is 4.7.3. Versions older than these (4.3, 4.2, 4.1, 3.5, 4.0, 3.4, 3.3) are end-of-life and no longer patched.
When does Mastodon 4.4 reach end of life?
Mastodon 4.4 reaches end-of-life on 17 Dec 2026 — about 2 months away. After that date it stops receiving security patches.
Is Mastodon end-of-life?
No — Mastodon still has supported release lines (4.5, 4.4). But individual older versions are end-of-life, so what matters is the specific version you run.
How do I know when my Mastodon version reaches end of life?
Check the version you run on its product page, or monitor Mastodon on IsItPatched to get an email alert before the release line you use reaches end-of-life — so you can upgrade in time.
EOL dates aggregated from endoflife.date and vendor sources, and can change — always confirm with Mastodon. See related: Mastodon security status · full EOL calendar · what is end-of-life software? · disclaimer.