etcd 3.3 End of Life
Support dates and upgrade guidance — rebuilt from live data.
End of Life
etcd 3.3 reached end of life on 15 Oct 2021. It no longer receives security fixes.
1,759 days without security patches
Recommended action: upgrade to etcd 3.7. Check your versionetcdctl version
Support timeline
Official dates from the etcd release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 1 Feb 2018 | — |
| End of life | 15 Oct 2021 | 4.8 years ago |
| Latest release | 3.3.27 · 15 Oct 2021 | final |
Where to go from 3.3
Recommended target: etcd 3.7.
The newest actively supported branch is etcd 3.7 (latest release 3.7.1).
Frequently asked questions
Is etcd 3.3 still safe to use?
etcd 3.3 reached end of life on 15 Oct 2021, 1,759 days ago, and is no longer covered by standard support. Running it means no guaranteed security fixes.
Can I still download etcd 3.3?
Yes — the final release (3.3.27) generally remains available from vendor archives and OS package mirrors, but installing it means running software with known, unpatched vulnerabilities.
What should I upgrade etcd 3.3 to?
Upgrade to etcd 3.7, the newest actively supported branch.