NetBSD 9 End of Life
Support dates and upgrade guidance — rebuilt from live data.
End of Life
NetBSD 9 reached end of life on 31 Aug 2026. It no longer receives security fixes.
35 days without security patches
Recommended action: upgrade to NetBSD 11. Check your versionuname -r
Support timeline
Official dates from the NetBSD release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 14 Feb 2020 | 6y 8mo ago |
| Active Support ended | 28 Mar 2024 | security fixes only after this |
| Security Support ended | 31 Aug 2026 | 1mo ago |
| Latest release | 9.5 · 31 Aug 2026 | final |
Where to go from 9
Recommended target: NetBSD 11.
The newest actively supported branch is NetBSD 11 (latest release 11.0).
Frequently asked questions
Is NetBSD 9 still safe to use?
NetBSD 9 reached end of life on 31 Aug 2026, 35 days ago, and is no longer covered by standard support. Running it means no guaranteed security fixes.
Can I still download NetBSD 9?
Yes — the final release (9.5) generally remains available from vendor archives and OS package mirrors, but installing it means running software with known, unpatched vulnerabilities.
What should I upgrade NetBSD 9 to?
Upgrade to NetBSD 11, the newest actively supported branch.