Kirby 4 End of Life
Support dates and upgrade guidance — rebuilt from live data.
Supported
Kirby 4 is actively supported. It reaches end of life on 28 Nov 2026.
54 days of security support left
4.9.6 latest release
95% of this branch's supported lifetime has elapsed — 28 Nov 2023 → 28 Nov 2026.
Support timeline
Official dates from the Kirby release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 28 Nov 2023 | 2y 10mo ago |
| Security Support ends | 28 Nov 2026 | in 2mo |
| Latest release | 4.9.6 · 16 Sept 2026 | current |
How much runway a newer branch buys
Kirby 4 is the newest branch — this is the longest runway currently available.
| Branch | End of life | Days left | vs 4 |
|---|---|---|---|
| Kirby 4 | 28 Nov 2026 | 54 | this branch |
Frequently asked questions
When does Kirby 4 reach end of life?
Kirby 4 reaches end of life on 28 Nov 2026 — 54 days from now. After that date it receives no security fixes.
Is Kirby 4 still supported?
Yes. Kirby 4 is currently maintained. Latest release: 4.9.6, published 16 Sept 2026.
What happens when Kirby 4 reaches end of life?
Security fixes stop. After 28 Nov 2026 this branch receives no further updates under standard support.
How long do I have to upgrade from Kirby 4?
54 days. This is already the newest branch, so this is the longest runway currently available.