Google Container-Optimized OS (COS) cos-85 End of Life
Support dates and upgrade guidance — rebuilt from live data.
Google Container-Optimized OS (COS) cos-85 reached end of life on 1 Sept 2022. It no longer receives security fixes.
Support timeline
Official dates from the Google Container-Optimized OS (COS) release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 24 Sept 2020 | — |
| End of life | 1 Sept 2022 | 3.9 years ago |
| Latest release | cos-85-13310-1498-13 · 22 Aug 2022 | final |
Where to go from cos-85
Recommended target: Google Container-Optimized OS (COS) cos-129 (supported until 1 Mar 2028).
The newest actively supported branch is Google Container-Optimized OS (COS) cos-129 (latest release cos-129-19506-299-82).
Frequently asked questions
Is Google Container-Optimized OS (COS) cos-85 still safe to use?
Google Container-Optimized OS (COS) cos-85 reached end of life on 1 Sept 2022, 1,438 days ago, and is no longer covered by standard support. Running it means no guaranteed security fixes.
Can I still download Google Container-Optimized OS (COS) cos-85?
Yes — the final release (cos-85-13310-1498-13) generally remains available from vendor archives and OS package mirrors, but installing it means running software with known, unpatched vulnerabilities.
What should I upgrade Google Container-Optimized OS (COS) cos-85 to?
Upgrade to Google Container-Optimized OS (COS) cos-129, the newest actively supported branch (supported until 1 Mar 2028).