Google Chrome 66 End of Life
Support dates and upgrade guidance — rebuilt from live data.
Google Chrome 66 reached end of life on 29 May 2018. It no longer receives security fixes.
Support timeline
Official dates from the Google Chrome release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 17 Apr 2018 | 8y 6mo ago |
| Security Support ended | 29 May 2018 | 8y 5mo ago |
| Latest release | — | final |
Where to go from 66
Recommended target: Google Chrome 155 (supported until 20 Oct 2026).
The newest actively supported branch is Google Chrome 155 (latest release ).
Frequently asked questions
Is Google Chrome 66 still safe to use?
Google Chrome 66 reached end of life on 29 May 2018, 3,061 days ago, and is no longer covered by standard support. Running it means no guaranteed security fixes.
Can I still download Google Chrome 66?
Yes — the final release (66) 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 Chrome 66 to?
Upgrade to Google Chrome 155, the newest actively supported branch (supported until 20 Oct 2026).