nix 1 End of Life
Support dates and upgrade guidance — rebuilt from live data.
End of Life
nix 1 reached end of life on 22 Feb 2018. It no longer receives security fixes.
3,090 days without security patches
Recommended action: upgrade to nix 2.35. Check your versionnix --version
Support timeline
Official dates from the nix release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 11 May 2012 | — |
| End of life | 22 Feb 2018 | 8.5 years ago |
| Latest release | 1.11.16 · 20 Dec 2017 | final |
Where to go from 1
Recommended target: nix 2.35.
The newest actively supported branch is nix 2.35 (latest release 2.35.1).
Frequently asked questions
Is nix 1 still safe to use?
nix 1 reached end of life on 22 Feb 2018, 3,090 days ago, and is no longer covered by standard support. Running it means no guaranteed security fixes.
Can I still download nix 1?
Yes — the final release (1.11.16) generally remains available from vendor archives and OS package mirrors, but installing it means running software with known, unpatched vulnerabilities.
What should I upgrade nix 1 to?
Upgrade to nix 2.35, the newest actively supported branch.
All nix versions
2.35 supported 2.34 EOL 2026 2.33 EOL 2026 2.32 EOL 2025 2.31 EOL 2025 2.30 EOL 2025 2.29 EOL 2025 2.28 EOL 2025 2.27 EOL 2025 2.26 EOL 2025 2.25 EOL 2025 2.24 EOL 2025 2.23 EOL 2024 2.22 EOL 2024 2.21 EOL 2024 2.20 EOL 2024 2.19 EOL 2024 2.18 EOL 2024 2.17 EOL 2024 2.16 EOL 2024 2.15 EOL 2023 2.14 EOL 2023 2.13 EOL 2023 2.12 EOL 2023 2.11 EOL 2022 2.10 EOL 2022 2.9 EOL 2022 2.8 EOL 2022 2.7 EOL 2022 2.6 EOL 2022 2.5 EOL 2022 2.4 EOL 2021 2.3 EOL 2021 2.2 EOL 2019 2.1 EOL 2019 2.0 EOL 2018 1 EOL 2018