Kirby 4.x — End of Life
ActiveKirby 4.x — All releases
| Version | Released | Active support | EOL date | Latest patch | Status |
|---|---|---|---|---|---|
| 4 | Nov 28, 2023 | — | Jun 23, 2027 | 4.9.5 | Active |
CVEs affecting Kirby 4.x (0)
Kirby 4.x will reach end of life — migrate to Kirby 5.x
Kirby 5.x is the next major release. Plan your upgrade before Kirby 4.x stops receiving security patches.
Frequently asked questions
Is Kirby 4 end of life?
No. Kirby 4.x is still supported until June 23, 2027. It continues to receive security patches and bug fixes.
What CVEs affect Kirby 4?
No CVEs are currently tracked for Kirby 4.x in our database. This may mean no vulnerabilities have been recorded yet, or the data is still syncing.
What is the latest Kirby 4 version?
The latest Kirby 4.x patch release is 4.9.5, released on July 15, 2026. Always run the latest patch to benefit from all security fixes.
How to migrate from Kirby 4 to Kirby 5?
To migrate from Kirby 4 to Kirby 5: (1) review the official Kirby 5 migration guide for breaking changes, (2) update dependencies and configuration accordingly, (3) test thoroughly in a staging environment, (4) deploy with a rollback plan. Starting early gives you time to resolve compatibility issues before your current version reaches end of life.
Is it safe to run Kirby 4 in production?
Kirby 4 is still supported and safe for production use until June 23, 2027. Ensure you are running the latest patch version (4.9.5) to have all security fixes applied.
Data sourced from endoflife.date · CVE data from NVD · EPSS from FIRST.org · KEV from CISA