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 | — |
| End of life | 29 May 2018 | 8.2 years ago |
| Latest release | — | final |
Where to go from 66
Recommended target: Google Chrome 151 (supported until 25 Aug 2026).
The newest actively supported branch is Google Chrome 151 (latest release ).
Frequently asked questions
Is Google Chrome 66 still safe to use?
Google Chrome 66 reached end of life on 29 May 2018, 2,994 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 151, the newest actively supported branch (supported until 25 Aug 2026).