Kirby 3.1 End of Life
Support dates and upgrade guidance — rebuilt from live data.
End of Life
Kirby 3.1 reached end of life on 16 Nov 2021. It no longer receives security fixes.
1,727 days without security patches
Recommended action: upgrade to Kirby 5. Support timeline
Official dates from the Kirby release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 19 Mar 2019 | — |
| End of life | 16 Nov 2021 | 4.7 years ago |
| Latest release | 3.1.4 · 21 May 2019 | final |
Where to go from 3.1
Recommended target: Kirby 5.
The newest actively supported branch is Kirby 5 (latest release 5.5.3).
Frequently asked questions
Is Kirby 3.1 still safe to use?
Kirby 3.1 reached end of life on 16 Nov 2021, 1,727 days ago, and is no longer covered by standard support. Running it means no guaranteed security fixes.
Can I still download Kirby 3.1?
Yes — the final release (3.1.4) generally remains available from vendor archives and OS package mirrors, but installing it means running software with known, unpatched vulnerabilities.
What should I upgrade Kirby 3.1 to?
Upgrade to Kirby 5, the newest actively supported branch.