Checkmk End of Life (EOL) Dates and End of Support (EOS) Dates
Checkmk 2.2 has reached End of Life (EOL) and End of Support (EOS) — EOL date: Nov 23, 2025. This version no longer receives security updates, patches, or support. Checkmk 2.3 reaches its End of Support date on Oct 29, 2026 — plan your upgrade path now. Checkmk 2.5 is the current supported release, with support through Apr 28, 2028 — 2 versions in active support. Also see Elastic Beats lifecycle dates for related end-of-life information.
Currently Supported Checkmk Releases - Active EOS/EOSL Support (2)
Checkmk Releases Nearing End of Life - Support Ending Soon (1)
| Release | Released | Security Support | Latest |
|---|---|---|---|
| 2.3 | (2 years and 1 month ago) | (in 4 months) | 2.3 (2 years and 1 month ago) |
Checkmk End of Life (EOL) Releases - No Longer Supported (1)
| Release | Released | Security Support | Latest |
|---|---|---|---|
| 2.2 | (3 years and 1 month ago) | (7 months ago) | 2.2 (3 years and 1 month ago) |
Checkmk End of Life & Support Summary
Which Checkmk Versions Are Currently Supported?
Checkmk currently has 2 supported releases. Checkmk 2.5 is the latest, with active support through Apr 28, 2028. Checkmk 2.4 is also supported until Nov 06, 2027. Note that Checkmk 2.3 support ends on Oct 29, 2026 — plan your upgrade before then. Also see Grafana Loki lifecycle dates for related end-of-life information.
Checkmk Versions Nearing End of Life
1 Checkmk release is reaching End of Life (EOL) within 6 months. Checkmk 2.3 support ends on Oct 29, 2026. Upgrade to Checkmk 2.5 to stay on a supported release. Also see UnrealIRCd end of support for related end-of-life information.
Checkmk End of Life (EOL) Version History
1 Checkmk release has reached End of Life (EOL) and End of Support (EOS) — no longer receiving updates or patches. Checkmk 2.2 reached EOL on Nov 23, 2025. Checkmk 2.5 is the recommended upgrade for users still on End of Life versions.