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Checkmk
Active
Other Latest Version: 2.5 Latest Release: Apr 28, 2026
Versions
4
Latest Version
2.5
Active Support
3
EOL
1
Lifecycle Timeline
Today ↓
2.5
2.5
2.4
2.4
2.3
2.3
2.2
2.2
Active SupportSecurity SupportEOL
Versions
| Release | Release Date | Active Support | EOL | Latest Version | LTS | Status |
|---|---|---|---|---|---|---|
| 2.5 | Apr 28, 2026 | Yes | Apr 28, 2028 | 2.5 | No | Active |
| 2.4 | May 6, 2025 | Yes | Nov 6, 2027 | 2.4 | No | Active |
| 2.3 | Apr 29, 2024 | Yes | Oct 29, 2026 | 2.3 | No | Active |
| 2.2 | May 23, 2023 | No | Nov 23, 2025 | 2.2 | No | EOL |
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.