Mastodon End of Life (EOL) Dates and End of Support (EOS) Dates
Mastodon end of life (EOL) and end of support (EOS) dates: 12 Mastodon versions have reached EOL, including Mastodon 4.3 (EOL date: May 06, 2026) — no longer receiving security updates or patches. Mastodon 4.4 reaches its End of Support date on Dec 17, 2026 — plan your upgrade path now. Mastodon 4.7.3 is the current supported release — 2 versions in active support. Also see Deno end of life dates for related end-of-life information.
Currently Supported Mastodon Releases - Active EOS/EOSL Support (2)
Mastodon Releases Nearing End of Life - Support Ending Soon (2)
Mastodon End of Life (EOL) Releases - No Longer Supported (12)
| Release | Released | Support | Latest |
|---|---|---|---|
| 4.3 | (2 years ago) | (5 months ago) | 4.3.23 (5 months ago) |
| 4.2 | (3 years and 1 month ago) | (9 months ago) | 4.2.29 (9 months ago) |
| 4.1 | (3 years and 8 months ago) | (1 year and 6 months ago) | 4.1.25 (1 year and 6 months ago) |
| 4.0 | (3 years and 11 months ago) | (2 years and 11 months ago) | 4.0.15 (2 years and 8 months ago) |
| 3.5 | (4 years and 6 months ago) | (2 years and 9 months ago) | 3.5.19 (2 years and 8 months ago) |
| 3.4 | (5 years and 5 months ago) | (3 years and 11 months ago) | 3.4.10 (3 years and 11 months ago) |
| 3.3 | (5 years and 9 months ago) | (4 years and 4 months ago) | 3.3.3 (4 years and 6 months ago) |
| 3.2 | (6 years and 2 months ago) | — | 3.2.2 (5 years and 10 months ago) |
| 3.1 | (6 years and 8 months ago) | — | 3.1.5 (6 years and 3 months ago) |
| 3.0 | (7 years ago) | — | 3.0.2 (6 years and 7 months ago) |
| 2 | (9 years ago) | — | 2.9.4 (6 years and 7 months ago) |
| 1 | (9 years and 8 months ago) | — | 1.6.1 (9 years and 1 month ago) |
Mastodon End of Life & Support Summary
Which Mastodon Versions Are Currently Supported?
Mastodon currently has 2 supported releases. Mastodon 4.7.3 is the latest. Mastodon 4.6. Note that Mastodon 4.4 support ends on Dec 17, 2026 — plan your upgrade before then. Also see Ionic Framework end of support for related end-of-life information.
Mastodon Versions Nearing End of Life
2 Mastodon releases are reaching End of Life (EOL) within 6 months. Mastodon 4.4 support ends on Dec 17, 2026. Mastodon 4.5 follows on Feb 20, 2027. Upgrade to Mastodon 4.7.3 to stay on a supported release. Also see React lifecycle dates for related end-of-life information.
Mastodon End of Life (EOL) Version History
12 Mastodon releases have reached End of Life (EOL) and End of Support (EOS) — no longer receiving updates or patches. Mastodon 4.3 reached EOL on May 06, 2026. Mastodon 4.7.3 is the recommended upgrade for users still on End of Life versions.