OpenZFS 2.1 End of Life
Support dates and upgrade guidance — rebuilt from live data.
End of Life
OpenZFS 2.1 reached end of life on 13 Jan 2025. It no longer receives security fixes.
573 days without security patches
Recommended action: upgrade to OpenZFS 2.4. Check your versionzpool get version [zpool name]
Support timeline
Official dates from the OpenZFS release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 19 Apr 2021 | — |
| End of life | 13 Jan 2025 | 1.6 years ago |
| Active support ended | 12 Oct 2023 | security fixes only after this |
| Latest release | 2.1.16 · 6 Dec 2024 | final |
Where to go from 2.1
Recommended target: OpenZFS 2.4.
The newest actively supported branch is OpenZFS 2.4 (latest release 2.4.3).
Frequently asked questions
Is OpenZFS 2.1 still safe to use?
OpenZFS 2.1 reached end of life on 13 Jan 2025, 573 days ago, and is no longer covered by standard support. Running it means no guaranteed security fixes.
Can I still download OpenZFS 2.1?
Yes — the final release (2.1.16) generally remains available from vendor archives and OS package mirrors, but installing it means running software with known, unpatched vulnerabilities.
What should I upgrade OpenZFS 2.1 to?
Upgrade to OpenZFS 2.4, the newest actively supported branch.