NixOS 20.03 · Version Status
NixOS 20.03 End of Life Date
NixOS 20.03 end-of-life date, support status, and CVE risk. Data reconciled from official vendor documentation and endoflife.date at every build; the source of each date is on the product page.
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NixOS 20.03 is past end of life. This version no longer receives security patches. 2177 days past EOL — migrate to a supported version immediately.
EOL Date
Oct 30, 2020
2177 days past EOL
Latest Release
—
Standard release
Release Date
Apr 20, 2020
NixOS 20.03 series
Lifecycle detail
NixOS 20.03 was released on April 20, 2020 and support ended on October 30, 2020 — a supported lifespan of 6 months, in line with the 7 months median for NixOS releases. It has been without security patches for 6 years. 11 newer NixOS releases have shipped since.
Attack Surface
10/30 Medium tier
CISA KEV Exposure
0/20 Not in KEV
Extended Support
0/10 Available
EOL Risk Score™ — proprietary methodology by endoflife.ai. Factors: EOL recency, attack surface breadth, CISA KEV catalog presence, extended support availability. Updated at every build.
Methodology → ·
View score card →
Extended Support
Extended NixOS 20.03 support is available
Commercial vendors offer security patches beyond EOL. Compare your options.
Compare Options →
| Version | Latest | EOL Date | Status |
|---|
| 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 20.03 end of life mean?
When NixOS 20.03 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: A CVE-based scan does not show the ongoing accumulation of unpatched vulnerabilities in EOL software versions. Some scanners flag unsupported versions of common products, but coverage varies, and none of them give you the date in advance. Running NixOS 20.03 past its EOL date creates a growing attack surface that a clean scan result does not rule out.
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 20.03 reach end of life?
NixOS 20.03 reached end of life on October 30, 2020. This version is no longer receiving security patches.
Is NixOS 20.03 still supported?
No. NixOS 20.03 reached end of life on October 30, 2020 and is no longer receiving security patches.
What should I upgrade to from NixOS 20.03?
What are the security risks of running NixOS 20.03 past EOL?
When NixOS 20.03 reaches end of life, the maintainers stop issuing security patches. Any CVEs disclosed after the EOL date accumulate with no vendor fix. A CVE-based scan does not show this — it is the CVE blind spot; some scanners flag unsupported versions of common products, but coverage varies and none give the date in advance. Organizations running EOL NixOS should migrate immediately or implement compensating controls.