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CheckmkEnd of Life (EOL) Dates & Support Status
Active
OtherLatest Version: 2.5Latest Release: Apr 28, 2026
Support summary
Checkmk 2.3 reaches EOL in 32 days. Start upgrade planning and compatibility testing now.
What do EOL and support statuses mean?Next EOL
Oct 29, 2026
Checkmk 2.3 · 32 days left
Supported cycles
3
0 lts
Versions
4
Latest Version
2.5
Active Support
3
EOL
1
Lifecycle Timeline
May 23, 2023As of Sep 27, 2026
2.5Active · Apr 28, 2028
2.4Active · Nov 6, 2027
2.3Active · Oct 29, 2026
2.2EOL · Nov 23, 2025
ActiveSecurityEOLHistorical phase unknown
Bars show history up to the snapshot date. Gray intervals lack dated support boundaries; arrows indicate an unannounced EOL date, not a support guarantee.
Versions
| Release | Release Date | Active Support | EOL | Latest Version | LTS | Status |
|---|---|---|---|---|---|---|
| 2.5 | Apr 28, 2026 | Maintained | Apr 28, 2028 | 2.5 | No | Active |
| 2.4 | May 6, 2025 | Maintained | Nov 6, 2027 | 2.4 | No | Active |
| 2.3 | Apr 29, 2024 | Maintained | Oct 29, 2026 | 2.3 | No | Active |
| 2.2 | May 23, 2023 | Ended | Nov 23, 2025 | 2.2 | No | EOL |
Data sources
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Show Checkmk's live support status in your README, docs, or dashboard. The badge is a static SVG served from eol.wiki and follows the lifecycle data above.
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<a href="https://eol.wiki/checkmk/"><img src="https://eol.wiki/badge/checkmk.svg" alt="Checkmk end-of-life status" height="20"></a>Frequently Asked Questions
Which versions of Checkmk have reached end of life?
The following Checkmk versions have reached end of life and no longer receive security updates: 2.2. It is recommended to upgrade to a supported version.
Is it safe to continue using Checkmk 2.2?
Checkmk 2.2 has reached end of life and no longer receives security patches or bug fixes. Continuing to use it may expose your systems to known vulnerabilities. We strongly recommend upgrading to a supported version.
What is the latest version of Checkmk?
The latest version of Checkmk is 2.5, released in the 2.5 release cycle.
How many versions of Checkmk are currently supported?
Checkmk currently has 3 actively supported version(s): 2.5, 2.4, 2.3.
When does Checkmk 2.5 reach end of life?
Checkmk 2.5 is scheduled to reach end of life on Apr 28, 2028.
What should I do when Checkmk reaches end of life?
When a Checkmk version reaches end of life, you should: 1) Plan your migration to a supported version as soon as possible. 2) Review the release notes for breaking changes. 3) Test your applications thoroughly in a staging environment. 4) Update your dependencies to ensure compatibility with the new version.