Mastodon End of Life (EOL) Dates and End of Support (EOS) Dates
12 Mastodon versions have reached End of Life (EOL) and End of Support (EOS), 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 4.6.3 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 (1)
| Release | Released | Support | Latest |
|---|---|---|---|
| 4.4 | (1 year ago) | (in 5 months) | 4.4.20 (2 weeks and 5 days ago) |
Mastodon End of Life (EOL) Releases - No Longer Supported (12)
| Release | Released | Support | Latest |
|---|---|---|---|
| 4.3 | (1 year and 9 months ago) | (2 months ago) | 4.3.23 (1 month and 3 weeks ago) |
| 4.2 | (2 years and 9 months ago) | (6 months ago) | 4.2.29 (6 months ago) |
| 4.1 | (3 years and 5 months ago) | (1 year and 3 months ago) | 4.1.25 (1 year and 3 months ago) |
| 4.0 | (3 years and 8 months ago) | (2 years and 8 months ago) | 4.0.15 (2 years and 4 months ago) |
| 3.5 | (4 years and 3 months ago) | (2 years and 6 months ago) | 3.5.19 (2 years and 4 months ago) |
| 3.4 | (5 years and 1 month ago) | (3 years and 8 months ago) | 3.4.10 (3 years and 8 months ago) |
| 3.3 | (5 years and 6 months ago) | (4 years and 1 month ago) | 3.3.3 (4 years and 3 months ago) |
| 3.2 | (5 years and 11 months ago) | — | 3.2.2 (5 years and 6 months ago) |
| 3.1 | (6 years and 5 months ago) | — | 3.1.5 (6 years ago) |
| 3.0 | (6 years and 9 months ago) | — | 3.0.2 (6 years and 4 months ago) |
| 2 | (8 years and 8 months ago) | — | 2.9.4 (6 years and 4 months ago) |
| 1 | (9 years and 5 months ago) | — | 1.6.1 (8 years and 9 months ago) |
Mastodon End of Life & Support Summary
Which Mastodon Versions Are Currently Supported?
Mastodon currently has 2 supported releases. Mastodon 4.6.3 is the latest. Mastodon 4.5. Note that Mastodon 4.4 support ends on Dec 17, 2026 — plan your upgrade before then. Also see React lifecycle dates for related end-of-life information.
Mastodon Versions Nearing End of Life
1 Mastodon release is reaching End of Life (EOL) within 6 months. Mastodon 4.4 support ends on Dec 17, 2026. Upgrade to Mastodon 4.6.3 to stay on a supported release. Also see tarteaucitron end of life 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 4.6.3 is the recommended upgrade for users still on End of Life versions.