NixOS End of Life (EOL) Dates and End of Support (EOS) Dates

Latest Release: 26.05 Yarara (May 30, 2026)

24 NixOS versions have reached End of Life (EOL) and End of Support (EOS), including NixOS 25.11 Xantusia (EOL date: Jun 30, 2026) — no longer receiving security updates or patches. NixOS 26.05 Yarara is the current supported release, with support through Dec 31, 2026. Also see antiX Linux EOSL dates for related end-of-life information.

NixOS end of life dates timeline — release schedule chart of the 8 most recent NixOS versions, mapping security support windows against their EOL dates — NixOS end of life dates and end of support (EOS) dates shown as a release schedule — support windows for the 8 most recent NixOS releases of 25 total. Each bar runs from the release date to the end of security support, with the dashed line marking today. Exact NixOS EOL, EOS and EOSL dates for every version are listed in the tables below.

Currently Supported NixOS Releases - Active EOS/EOSL Support (1)

Release	Released	Security Support
26.05 'Yarara'	May 30, 2026 (3 months ago)	Dec 31, 2026 (in 3 months)

NixOS End of Life (EOL) Releases - No Longer Supported (24)

Release	Released	Security Support
25.11 'Xantusia'	Nov 30, 2025 (9 months ago)	Jun 30, 2026 (2 months ago)
25.05 'Warbler'	May 23, 2025 (1 year and 3 months ago)	Dec 31, 2025 (8 months ago)
24.11 'Vicuña'	Nov 30, 2024 (1 year and 9 months ago)	Jun 30, 2025 (1 year and 2 months ago)
24.05 'Uakari'	May 31, 2024 (2 years and 3 months ago)	Dec 31, 2024 (1 year and 8 months ago)
23.11 'Tapir'	Nov 29, 2023 (2 years and 9 months ago)	Jun 30, 2024 (2 years and 2 months ago)

23.05 'Stoat'	May 31, 2023 (3 years and 3 months ago)	Dec 31, 2023 (2 years and 8 months ago)
22.11 'Raccoon'	Nov 30, 2022 (3 years and 9 months ago)	Jun 30, 2023 (3 years and 2 months ago)
22.05 'Quokka'	May 30, 2022 (4 years and 3 months ago)	Dec 31, 2022 (3 years and 8 months ago)
21.11 'Porcupine'	Nov 30, 2021 (4 years and 9 months ago)	Jun 30, 2022 (4 years and 2 months ago)
21.05 'Okapi'	May 31, 2021 (5 years and 3 months ago)	Dec 31, 2021 (4 years and 8 months ago)
20.09 'Nightingale'	Oct 27, 2020 (5 years and 10 months ago)	Jun 30, 2021 (5 years and 2 months ago)
20.03 'Markhor'	Apr 20, 2020 (6 years and 5 months ago)	Oct 30, 2020 (5 years and 10 months ago)
19.09 'Lori'	Oct 09, 2019 (6 years and 11 months ago)	Apr 30, 2020 (6 years and 4 months ago)
19.03 'Koi'	Apr 11, 2019 (7 years and 5 months ago)	Oct 30, 2019 (6 years and 10 months ago)
18.09 'Jellyfish'	Oct 05, 2018 (7 years and 11 months ago)	Apr 30, 2019 (7 years and 4 months ago)
18.03 'Impala'	Apr 04, 2018 (8 years and 5 months ago)	Oct 30, 2018 (7 years and 10 months ago)
17.09 'Hummingbird'	Sep 29, 2017 (8 years and 11 months ago)	Apr 30, 2018 (8 years and 4 months ago)
17.03 'Gorilla'	Mar 31, 2017 (9 years and 5 months ago)	Oct 30, 2017 (8 years and 10 months ago)
16.09 'Flounder'	Sep 30, 2016 (9 years and 11 months ago)	Apr 30, 2017 (9 years and 4 months ago)
16.03 'Emu'	Mar 31, 2016 (10 years and 5 months ago)	Oct 30, 2016 (9 years and 10 months ago)
15.09 'Dingo'	Sep 30, 2015 (10 years and 11 months ago)	Apr 30, 2016 (10 years and 4 months ago)
14.12 'Caterpillar'	Dec 30, 2014 (11 years and 8 months ago)	Sep 30, 2015 (10 years and 11 months ago)
14.04 'Baboon'	Apr 30, 2014 (12 years and 4 months ago)	Jan 31, 2015 (11 years and 7 months ago)
13.10 'Aardvark'	Oct 31, 2013 (12 years and 10 months ago)	May 31, 2014 (12 years and 3 months ago)

NixOS End of Life & Support Summary

Which NixOS Versions Are Currently Supported?

NixOS currently has 1 supported release. NixOS 26.05 Yarara is the latest, with active support through Dec 31, 2026. Also see Pop!_OS end of support for related end-of-life information.

NixOS End of Life (EOL) Version History

24 NixOS releases have reached End of Life (EOL) and End of Support (EOS) — no longer receiving updates or patches. NixOS 25.11 Xantusia reached EOL on Jun 30, 2026. NixOS 26.05 Yarara is the recommended upgrade for users still on End of Life versions.