FreeBSD 3.1 · Version Status
FreeBSD 3.1 End of Life Date
FreeBSD 3.1 end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.
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FreeBSD 3.1 is past end of life. This version no longer receives security patches. 9748 days past EOL — migrate to a supported version immediately.
EOL Date
Aug 31, 1999
9748 days past EOL
Latest Release
—
Standard release
Release Date
Feb 28, 1999
FreeBSD 3.1 series
| Version | Latest | EOL Date | Status |
|---|
| 1.0 |
— |
Aug 31, 1994 |
EOL |
| 1.1 |
— |
May 31, 1995 |
EOL |
| 2.0 |
— |
Feb 28, 1996 |
EOL |
| 2.1 |
— |
Jun 30, 1997 |
EOL |
| 2.2 |
— |
Mar 31, 1998 |
EOL |
| 3.0 |
— |
May 31, 1999 |
EOL |
| → 3.1 |
— |
Aug 31, 1999 |
EOL |
| 3.2 |
— |
Dec 31, 1999 |
EOL |
What does FreeBSD 3.1 end of life mean?
When FreeBSD 3.1 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 FreeBSD 3.1 past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.
Migrate to FreeBSD 14.4 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does FreeBSD 3.1 reach end of life?
FreeBSD 3.1 reached end of life on August 31, 1999. This version is no longer receiving security patches.
Is FreeBSD 3.1 still supported?
No. FreeBSD 3.1 reached end of life on August 31, 1999 and is no longer receiving security patches.
What should I upgrade to from FreeBSD 3.1?
The recommended upgrade from FreeBSD 3.1 is
FreeBSD 14.4 — the latest actively supported version. Check the
FreeBSD full timeline for all supported versions.
What are the security risks of running FreeBSD 3.1 past EOL?
When FreeBSD 3.1 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 FreeBSD should migrate immediately or implement compensating controls.