SteamOS 1 End of Life
Support dates and upgrade guidance — rebuilt from live data.
End of Life
SteamOS 1 reached end of life on 2 Nov 2015. It no longer receives security fixes.
3,933 days without security patches
Recommended action: upgrade to SteamOS 3. Support timeline
Official dates from the SteamOS release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 1 Dec 2013 | — |
| End of life | 2 Nov 2015 | 10.8 years ago |
| Latest release | — | final |
Where to go from 1
Recommended target: SteamOS 3.
The newest actively supported branch is SteamOS 3 (latest release ).
Frequently asked questions
Is SteamOS 1 still safe to use?
SteamOS 1 reached end of life on 2 Nov 2015, 3,933 days ago, and is no longer covered by standard support. Running it means no guaranteed security fixes.
Can I still download SteamOS 1?
Yes — the final release (1) generally remains available from vendor archives and OS package mirrors, but installing it means running software with known, unpatched vulnerabilities.
What should I upgrade SteamOS 1 to?
Upgrade to SteamOS 3, the newest actively supported branch.