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NixOSEnd of Life (EOL) Dates & Support Status
Active
Operating SystemsLatest Version: 26.05Latest Release: N/A
NixOS is a Linux distribution built on the Nix package manager, featuring declarative configuration and reproducible builds.
Support summary
NixOS currently has supported cycles. Track the next EOL date and validate upgrades before your change window.
What do EOL and support statuses mean?Next EOL
Dec 31, 2026
NixOS 26.05 · 95 days left
Supported cycles
1
0 lts
Versions
25
Latest Version
26.05
Active Support
1
EOL
24
Lifecycle Timeline
Nov 30, 2021As of Sep 27, 2026
26.05Active · Dec 31, 2026
25.11EOL · Jun 30, 2026
25.05EOL · Dec 31, 2025
24.11EOL · Jun 30, 2025
24.05EOL · Dec 31, 2024
23.11EOL · Jun 30, 2024
23.05EOL · Dec 31, 2023
22.11EOL · Jun 30, 2023
22.05EOL · Dec 31, 2022
21.11EOL · Jun 30, 2022
ActiveSecurityEOLHistorical phase unknown
Bars show history up to the snapshot date. Gray intervals lack dated support boundaries; arrows indicate an unannounced EOL date, not a support guarantee.
Versions
| Release | Release Date | Active Support | EOL | Latest Version | LTS | Status |
|---|---|---|---|---|---|---|
| 26.05Yarara | May 30, 2026 | Maintained | Dec 31, 2026 | 26.05 | No | Active |
| 25.11Xantusia | Nov 30, 2025 | Ended | Jun 30, 2026 | 25.11 | No | EOL |
| 25.05Warbler | May 23, 2025 | Ended | Dec 31, 2025 | 25.05 | No | EOL |
| 24.11Vicuña | Nov 30, 2024 | Ended | Jun 30, 2025 | 24.11 | No | EOL |
| 24.05Uakari | May 31, 2024 | Ended | Dec 31, 2024 | 24.05 | No | EOL |
| 23.11Tapir | Nov 29, 2023 | Ended | Jun 30, 2024 | 23.11 | No | EOL |
| 23.05Stoat | May 31, 2023 | Ended | Dec 31, 2023 | 23.05 | No | EOL |
| 22.11Raccoon | Nov 30, 2022 | Ended | Jun 30, 2023 | 22.11 | No | EOL |
| 22.05Quokka | May 30, 2022 | Ended | Dec 31, 2022 | 22.05 | No | EOL |
| 21.11Porcupine | Nov 30, 2021 | Ended | Jun 30, 2022 | 21.11 | No | EOL |
| 21.05Okapi | May 31, 2021 | Ended | Dec 31, 2021 | 21.05 | No | EOL |
| 20.09Nightingale | Oct 27, 2020 | Ended | Jun 30, 2021 | 20.09 | No | EOL |
| 20.03Markhor | Apr 20, 2020 | Ended | Oct 30, 2020 | 20.03 | No | EOL |
| 19.09Loris | Oct 9, 2019 | Ended | Apr 30, 2020 | 19.09 | No | EOL |
| 19.03Koi | Apr 11, 2019 | Ended | Oct 30, 2019 | 19.03 | No | EOL |
| 18.09Jellyfish | Oct 5, 2018 | Ended | Apr 30, 2019 | 18.09 | No | EOL |
| 18.03Impala | Apr 4, 2018 | Ended | Oct 30, 2018 | 18.03 | No | EOL |
| 17.09Hummingbird | Sep 29, 2017 | Ended | Apr 30, 2018 | 17.09 | No | EOL |
| 17.03Gorilla | Mar 31, 2017 | Ended | Oct 30, 2017 | 17.03 | No | EOL |
| 16.09Flounder | Sep 30, 2016 | Ended | Apr 30, 2017 | 16.09 | No | EOL |
| 16.03Emu | Mar 31, 2016 | Ended | Oct 30, 2016 | 16.03 | No | EOL |
| 15.09Dingo | Sep 30, 2015 | Ended | Apr 30, 2016 | 15.09 | No | EOL |
| 14.12Caterpillar | Dec 30, 2014 | Ended | Sep 30, 2015 | 14.12 | No | EOL |
| 14.04Baboon | Apr 30, 2014 | Ended | Jan 31, 2015 | 14.04 | No | EOL |
| 13.10Aardvark | Oct 31, 2013 | Ended | May 31, 2014 | 13.10 | No | EOL |
Data sources
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<a href="https://eol.wiki/nixos/"><img src="https://eol.wiki/badge/nixos.svg" alt="NixOS end-of-life status" height="20"></a>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: 25.11, 25.05, 24.11, 24.05, 23.11, 23.05, 22.11, 22.05 (and 16 more). It is recommended to upgrade to a supported version.
Is it safe to continue using NixOS 25.11?
NixOS 25.11 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 1 actively supported version(s): 26.05.
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.