Checkmk Server: Releases, patches & end-of-life
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Lifecycle guide for Checkmk Server from Checkmk

All releases, patches, maintenance and support periods at a glance

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📅 Last update on 2026-06-18

What is Checkmk Server?

Automate product release and end-of-life managementA Checkmk server is a comprehensive IT monitoring system that provides a centralized overview of the health and performance of your entire infrastructure, including servers, networks, applications, and cloud services. It actively collects data and uses a powerful rules-based engine to send alerts, enabling administrators to proactively identify and resolve issues before they impact users.
 

The entire lifecycle of Checkmk Server

The following figure shows you the visualised product life cycle of Checkmk Server. You can see all releases with the latest patch version, the long-term support characteristics (orange flag in the green circle, the periods for version provision, maintenance and support.
Checkmk Server (Checkmk) release, version and end-of-life information
XCheckmk Server (Checkmk) release, version and end-of-life information
Figure: Release, patch and end-of-life cycle of product Checkmk Server (Checkmk)
 

What is the Checkmk Server release strategy?

## Active maintenance The rule as of version 1.6.0 is: The active maintenance ends for a version 6 months after the release of the new version. Since for the stable version the follow-up version has not yet been released, the planned release date serves to determine the product lifecycle. This means that two versions are served in parallel with patch versions for 6 months: the stable version and the previous (oldstable) version. An overview of the product lifecycle can be found at the end of this article. ## Passive maintenance After the end of the active maintenance, the stable branch moves to a passive maintenance phase, which generally lasts for another year. During this time we generally only fix errors when commissioned by customers using support tickets through a support contract.

Facts and figures about Checkmk Server

Product
Checkmk Server
Vendor
Checkmk
Latest version
2.5.0p5
Number of releases
11
Number of versions
953
Number of unstable versions
440
Number of versions affected by CVE
347
Licence
GPL-2.0 license
Licence details
https://github.com/Checkmk/checkmk?tab=GPL-2.0-1-ov-file#readme
 
 

Questions or interested? Talk to me!


Lukas Böttcher
Lukas Böttcher
Business Development Manager
P:  +49-30-221986-51
LinkedIn

 

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