Kirby · Lifecycle Status

Kirby End of Life (EOL) Dates & Support Timeline

Complete end-of-life dates, support windows, and security status for all Kirby versions. Data sourced from endoflife.date and official vendor documentation. Updated at every deploy.

Kirby 4.9.0 is actively supported. Next EOL: version 4 on June 23, 2027.
Latest Active
4.9.0
4 series
Next EOL
4
Jun 23, 2027
Active Versions
2
of 21 total
EOL Versions
19
no longer patched
Release Cycle Timeline
EOL   Warning   Active   Today
Release cycle timeline 20122013201420152016201720182019202020212022202320242025202620271.01.12.02.12.22.32.42.53.03.13.23.33.43.53.63.73.83.943.105TODAY
All Versions
VersionLatest ReleaseRelease DateEOL DateDaysStatus
1.0 1.0.9 Jan 9, 2012 Feb 1, 2016 3750 days past EOL EOL
1.1 1.1.2 Jun 19, 2012 Feb 1, 2016 3750 days past EOL EOL
2.0 2.0.6 Oct 7, 2014 Jan 1, 2021 1954 days past EOL EOL
2.1 2.1.1 May 19, 2015 Jan 1, 2021 1954 days past EOL EOL
2.2 2.2.3 Nov 17, 2015 Jan 1, 2021 1954 days past EOL EOL
2.3 2.3.3 May 17, 2016 Jan 1, 2021 1954 days past EOL EOL
2.4 2.4.2 Nov 3, 2016 Jan 1, 2021 1954 days past EOL EOL
2.5 2.5.14 Jun 20, 2017 Jan 1, 2021 1954 days past EOL EOL
3.0 3.0.3 Jan 15, 2019 Nov 16, 2021 1635 days past EOL EOL
3.1 3.1.4 Mar 19, 2019 Nov 16, 2021 1635 days past EOL EOL
3.2 3.2.5 Jun 25, 2019 Nov 16, 2021 1635 days past EOL EOL
3.3 3.3.6 Nov 5, 2019 Nov 16, 2021 1635 days past EOL EOL
3.4 3.4.5 Jul 7, 2020 Nov 16, 2021 1635 days past EOL EOL
3.5 3.5.8.4 Dec 15, 2020 Nov 15, 2023 906 days past EOL EOL
3.6 3.6.6.6 Nov 16, 2021 Jun 26, 2024 682 days past EOL EOL
3.7 3.7.5.5 Jun 27, 2022 Oct 5, 2024 581 days past EOL EOL
3.8 3.8.4.4 Oct 6, 2022 Jan 16, 2025 478 days past EOL EOL
3.9 3.9.8.3 Jan 17, 2023 Nov 27, 2025 163 days past EOL EOL
4 4.9.0 Nov 28, 2023 Jun 23, 2027 410 days remaining Active
3.10 3.10.1.2 Dec 19, 2023 Nov 27, 2025 163 days past EOL EOL
5 5.4.0 Jun 24, 2025 Already EOL Supported Active

What does Kirby end of life mean for your organization?

When a Kirby version reaches end of life, the maintainers stop issuing security patches. Vulnerabilities discovered after this date are publicly disclosed on the National Vulnerability Database, exploit code appears on GitHub, and your systems remain permanently exposed.

The CVE blind spot: Most vulnerability scanners check for known CVEs but do not flag the accumulation of unpatched vulnerabilities in EOL software. With a zero-day, nobody knows about the vulnerability. With EOL software, the vulnerability is public — listed, rated, and often weaponized — but no patch will ever exist. This is the most dangerous gap in enterprise security posture.

Organizations running EOL Kirby should treat it as a vulnerability class in their risk register, apply compensating controls (network segmentation, enhanced monitoring, access restriction), and prioritize migration to a supported version.

Check your full stack for EOL risk

Upload requirements.txt, package.json, or Gemfile — full EOL report instantly.

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Frequently Asked Questions
What is the end-of-life date for Kirby?
The next Kirby version reaching EOL is 4 on June 23, 2027. See the full table above for all version EOL dates.
What is the latest supported version of Kirby?
The latest active version of Kirby is 4.9.0. Always verify against the table above as support windows can change.
What happens when Kirby reaches end of life?
When Kirby reaches end of life, the vendor stops issuing security patches. Any CVEs disclosed after the EOL date accumulate indefinitely with no patch path — creating an ever-growing attack surface that most vulnerability scanners do not flag.
How do I check if I'm running an EOL version of Kirby?
Check your current version against the table above. If your version's EOL date has passed, you are running unsupported software. You can also use the endoflife.ai Stack Scanner to check your entire dependency file at once.
Is there extended support available for EOL Kirby versions?
Some vendors offer extended support for EOL software. Contact the original vendor or check with enterprise support providers for options.

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Data from endoflife.date API · endoflife.date · Generated at build time · How we source data →