Nixos 21.x — End of Life
EOLNixos 21.x — All releases
| Version | Released | Active support | EOL date | Latest patch | Status |
|---|---|---|---|---|---|
| 21.11 | Nov 30, 2021 | — | Jun 30, 2022 | — | EOL |
| 21.05 | May 31, 2021 | — | Dec 31, 2021 | — | EOL |
CVEs affecting Nixos 21.x (0)
Nixos 21.x is EOL — migrate to Nixos 22.x
Nixos 22.x is the next major release. Plan your upgrade before Nixos 21.x stops receiving security patches.
Frequently asked questions
Is Nixos 21 end of life?
Yes. All Nixos 21.x releases have reached end of life and no longer receive security patches. Migrate to Nixos 22.x as soon as possible.
What CVEs affect Nixos 21?
No CVEs are currently tracked for Nixos 21.x in our database. This may mean no vulnerabilities have been recorded yet, or the data is still syncing.
What is the latest Nixos 21 version?
Check the version table above for the latest Nixos 21.x patch release.
How to migrate from Nixos 21 to Nixos 22?
To migrate from Nixos 21 to Nixos 22: (1) review the official Nixos 22 migration guide for breaking changes, (2) update dependencies and configuration accordingly, (3) test thoroughly in a staging environment, (4) deploy with a rollback plan. Starting early gives you time to resolve compatibility issues before your current version reaches end of life.
Is it safe to run Nixos 21 in production?
No. Nixos 21 has reached end of life and security vulnerabilities are no longer patched. Upgrade to a supported version immediately.
Data sourced from endoflife.date · CVE data from NVD · EPSS from FIRST.org · KEV from CISA