Debian 4 End of Life
Support dates and upgrade guidance — rebuilt from live data.
Debian 4 reached end of life on 15 Feb 2010. It no longer receives security fixes.
Support timeline
Official dates from the Debian release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 8 Apr 2007 | 19y 6mo ago |
| Debian <abbr title="Long Term Support">LTS</abbr> ended | 15 Feb 2010 | 16y 8mo ago |
| Latest release | 4.0r9 · 22 May 2010 | final |
Where to go from 4
Recommended target: Debian 13 (supported until 30 Jun 2030).
The newest actively supported branch is Debian 13 (latest release 13.7).
Frequently asked questions
Is Debian 4 still safe to use?
Debian 4 reached end of life on 15 Feb 2010, 6,076 days ago, and is no longer covered by standard support. Running it means no guaranteed security fixes.
Can I still download Debian 4?
Yes — the final release (4.0r9) generally remains available from vendor archives and OS package mirrors, but installing it means running software with known, unpatched vulnerabilities.
What should I upgrade Debian 4 to?
Upgrade to Debian 13, the newest actively supported branch (supported until 30 Jun 2030).