Nixos 20.09 · Version Status

Nixos 20.09 End of Life Date

Nixos 20.09 end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.

Nixos 20.09 is past end of life. This version no longer receives security patches. 1774 days past EOL — migrate to a supported version immediately.
EOL Date
Jun 30, 2021
1774 days past EOL
Latest Release
Standard release
Release Date
Oct 27, 2020
Nixos 20.09 series
← Nixos 20.03 All Nixos versions Nixos 21.05 →
All Nixos Versions
VersionLatestEOL DateStatus
13.10 May 31, 2014 EOL
14.04 Jan 31, 2015 EOL
14.12 Sep 30, 2015 EOL
15.09 Apr 30, 2016 EOL
16.03 Oct 30, 2016 EOL
16.09 Apr 30, 2017 EOL
17.03 Oct 30, 2017 EOL
17.09 Apr 30, 2018 EOL

What does Nixos 20.09 end of life mean?

When Nixos 20.09 reaches end of life, the maintainers stop issuing security patches for this version. CVEs discovered after the EOL date are publicly disclosed on the National Vulnerability Database with no patch available. Exploit code frequently appears on GitHub within days of disclosure.

The CVE blind spot: Most vulnerability scanners check for known CVEs but do not flag the ongoing accumulation of unpatched vulnerabilities in EOL software versions. Running Nixos 20.09 past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.

Migrate to a supported version or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.

Frequently Asked Questions
When does Nixos 20.09 reach end of life?
Nixos 20.09 reached end of life on June 30, 2021. This version is no longer receiving security patches.
Is Nixos 20.09 still supported?
No. Nixos 20.09 reached end of life on June 30, 2021 and is no longer receiving security patches.
What should I upgrade to from Nixos 20.09?
Check the Nixos full timeline for currently supported versions.
What are the security risks of running Nixos 20.09 past EOL?
When Nixos 20.09 reaches end of life, the maintainers stop issuing security patches. Any CVEs disclosed after the EOL date accumulate with no remediation path. Most vulnerability scanners do not flag this — it is the CVE blind spot. Organizations running EOL Nixos should migrate immediately or implement compensating controls.
Data from endoflife.date API · Generated at build time · How we source data →