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 23 Jun 2027.
318 days of security support left
4.9.5 latest release
76% of this branch's supported lifetime has elapsed — 28 Nov 2023 → 23 Jun 2027.
Support timeline
Official dates from the Kirby release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 28 Nov 2023 | — |
| End of life (scheduled) | 23 Jun 2027 | in 318 days |
| Latest release | 4.9.5 · 15 Jul 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 | 23 Jun 2027 | 318 | this branch |
Frequently asked questions
When does Kirby 4 reach end of life?
Kirby 4 reaches end of life on 23 Jun 2027 — 318 days from now. After that date it receives no security fixes.
Is Kirby 4 still supported?
Yes. Kirby 4 is currently maintained. Latest release: 4.9.5, published 15 Jul 2026.
What happens when Kirby 4 reaches end of life?
Security fixes stop. After 23 Jun 2027 this branch receives no further updates under standard support.
How long do I have to upgrade from Kirby 4?
318 days. This is already the newest branch, so this is the longest runway currently available.