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NixOS
Active
Operating Systems Latest Version: 26.05 Latest Release: N/A
NixOS is a Linux distribution built on the Nix package manager, featuring declarative configuration and reproducible builds.
Versions
25
Latest Version
26.05
Active Support
2
EOL
23
Lifecycle Timeline
Today ↓
26.05
26.05
25.11
25.11
25.05
25.05
24.11
24.11
24.05
24.05
23.11
23.11
23.05
23.05
22.11
22.11
22.05
22.05
21.11
21.11
Active SupportSecurity SupportEOL
Versions
| Release | Release Date | Active Support | EOL | Latest Version | LTS | Status |
|---|---|---|---|---|---|---|
| 26.05 | May 30, 2026 | Yes | Dec 31, 2026 | 26.05 | No | Active |
| 25.11 | Nov 30, 2025 | Yes | Jun 30, 2026 | 25.11 | No | Active |
| 25.05 | May 23, 2025 | No | Dec 31, 2025 | 25.05 | No | EOL |
| 24.11 | Nov 30, 2024 | No | Jun 30, 2025 | 24.11 | No | EOL |
| 24.05 | May 31, 2024 | No | Dec 31, 2024 | 24.05 | No | EOL |
| 23.11 | Nov 29, 2023 | No | Jun 30, 2024 | 23.11 | No | EOL |
| 23.05 | May 31, 2023 | No | Dec 31, 2023 | 23.05 | No | EOL |
| 22.11 | Nov 30, 2022 | No | Jun 30, 2023 | 22.11 | No | EOL |
| 22.05 | May 30, 2022 | No | Dec 31, 2022 | 22.05 | No | EOL |
| 21.11 | Nov 30, 2021 | No | Jun 30, 2022 | 21.11 | No | EOL |
| 21.05 | May 31, 2021 | No | Dec 31, 2021 | 21.05 | No | EOL |
| 20.09 | Oct 27, 2020 | No | Jun 30, 2021 | 20.09 | No | EOL |
| 20.03 | Apr 20, 2020 | No | Oct 30, 2020 | 20.03 | No | EOL |
| 19.09 | Oct 9, 2019 | No | Apr 30, 2020 | 19.09 | No | EOL |
| 19.03 | Apr 11, 2019 | No | Oct 30, 2019 | 19.03 | No | EOL |
| 18.09 | Oct 5, 2018 | No | Apr 30, 2019 | 18.09 | No | EOL |
| 18.03 | Apr 4, 2018 | No | Oct 30, 2018 | 18.03 | No | EOL |
| 17.09 | Sep 29, 2017 | No | Apr 30, 2018 | 17.09 | No | EOL |
| 17.03 | Mar 31, 2017 | No | Oct 30, 2017 | 17.03 | No | EOL |
| 16.09 | Sep 30, 2016 | No | Apr 30, 2017 | 16.09 | No | EOL |
| 16.03 | Mar 31, 2016 | No | Oct 30, 2016 | 16.03 | No | EOL |
| 15.09 | Sep 30, 2015 | No | Apr 30, 2016 | 15.09 | No | EOL |
| 14.12 | Dec 30, 2014 | No | Sep 30, 2015 | 14.12 | No | EOL |
| 14.04 | Apr 30, 2014 | No | Jan 31, 2015 | 14.04 | No | EOL |
| 13.10 | Oct 31, 2013 | No | May 31, 2014 | 13.10 | No | EOL |
Frequently Asked Questions
Which versions of NixOS have reached end of life?
The following NixOS versions have reached end of life and no longer receive security updates: 25.05, 24.11, 24.05, 23.11, 23.05, 22.11, 22.05, 21.11 (and 15 more). It is recommended to upgrade to a supported version.
Is it safe to continue using NixOS 25.05?
NixOS 25.05 has reached end of life and no longer receives security patches or bug fixes. Continuing to use it may expose your systems to known vulnerabilities. We strongly recommend upgrading to a supported version.
What is the latest version of NixOS?
The latest version of NixOS is 26.05, released in the 26.05 release cycle.
How many versions of NixOS are currently supported?
NixOS currently has 2 actively supported version(s): 26.05, 25.11.
When does NixOS 26.05 reach end of life?
NixOS 26.05 is scheduled to reach end of life on Dec 31, 2026.
What should I do when NixOS reaches end of life?
When a NixOS version reaches end of life, you should: 1) Plan your migration to a supported version as soon as possible. 2) Review the release notes for breaking changes. 3) Test your applications thoroughly in a staging environment. 4) Update your dependencies to ensure compatibility with the new version.