Checkmk

Server App

Checkmk 2.5 is the newest actively maintained release. 3 of 4 tracked cycles remain supported. The next cycle scheduled to reach end-of-life is 2.3, on October 29, 2026.

Latest version

2.5

Apr 28, 2026

Actively maintained cycles

of 4 tracked

Total cycles tracked

since May 23, 2023

Release lifecycle

Actively maintainedSecurity support onlyEnd of life

Today

2.5Latest

2.5 · Apr 28, 2026

2.4

2.4 · May 6, 2025

2.3

2.3 · Apr 29, 2024

2.2

EOL Nov 23, 2025

202420252026

Data sourced from endoflife.date.

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