Red Hat Enterprise Linux 4 End of Life
Support dates and upgrade guidance — rebuilt from live data.
Red Hat Enterprise Linux 4 reached end of life on 29 Feb 2012. It no longer receives security fixes.
Support timeline
Official dates from the Red Hat Enterprise Linux release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 15 Feb 2005 | — |
| End of life | 29 Feb 2012 | 14.5 years ago |
| Active support ended | 31 Mar 2009 | security fixes only after this |
| Extended support ends | 31 Mar 2017 | over |
| Latest release | 4.9 · 16 Feb 2011 | final |
Where to go from 4
Recommended target: Red Hat Enterprise Linux 10 (supported until 31 May 2035).
The newest actively supported branch is Red Hat Enterprise Linux 10 (latest release 10.2).
Frequently asked questions
Is Red Hat Enterprise Linux 4 still safe to use?
Red Hat Enterprise Linux 4 reached end of life on 29 Feb 2012, 5,275 days ago, and is no longer covered by standard support. Running it means no guaranteed security fixes.
Can I still download Red Hat Enterprise Linux 4?
Yes — the final release (4.9) generally remains available from vendor archives and OS package mirrors, but installing it means running software with known, unpatched vulnerabilities.
What should I upgrade Red Hat Enterprise Linux 4 to?
Upgrade to Red Hat Enterprise Linux 10, the newest actively supported branch (supported until 31 May 2035).