Checkmk 2.x — End of Life
EOL soonCheckmk 2.x is partially supported: only 2.5, 2.4, 2.3 still receive security fixes, the longest-lived (2.5) until Apr 28, 2028, in 553 days. The most recent release in this series is 2.5. No CVE is currently tracked for Checkmk 2.x.
Checkmk 2.x — All releases
| Version | Released | Active support | EOL date | Latest patch | Status | Alert me |
|---|---|---|---|---|---|---|
| 2.5 | Apr 28, 2026 | — | Apr 28, 2028 | 2.5 | Active | |
| 2.4 | May 6, 2025 | — | Nov 6, 2027 | 2.4 | Active | |
| 2.3 | Apr 29, 2024 | — | Oct 29, 2026 | 2.3 | EOL soon | |
| 2.2 | May 23, 2023 | — | Nov 23, 2025 | 2.2 | EOL | |
| 2.1 | May 24, 2022 | — | Nov 24, 2024 | 2.1 | EOL | |
| 2.0 | Mar 9, 2021 | — | Sep 9, 2023 | 2.0 | EOL |
CVEs affecting Checkmk 2.x (0)
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[](https://eolcanary.com/explore/checkmk/2)Frequently asked questions
Is Checkmk 2 end of life?
Partially. 3 of the 6 Checkmk 2.x releases have reached end of life. Still supported: 2.5, 2.4, 2.3 (until April 28, 2028 at the latest).
What CVEs affect Checkmk 2?
No CVEs are currently tracked for Checkmk 2.x in the NVD data we monitor.
What is the latest Checkmk 2 version?
The latest Checkmk 2.x patch release is 2.5, released on April 28, 2026. Always run the latest patch to benefit from all security fixes.
When was Checkmk 2 first released?
Checkmk 2.0 was released on March 9, 2021. See the full version timeline in the table above.
Is it safe to run Checkmk 2 in production?
Only on a supported release (2.5, 2.4, 2.3). Support for Checkmk 2.5 ends on April 28, 2028. Make sure you run the latest patch (2.5) to have all security fixes applied.
Data sourced from endoflife.date · CVE data from NVD · EPSS from FIRST.org · KEV from CISA