Checkmk End of Life Dates
Server applicationsAll 6 Checkmk release branches: support windows, latest releases, and what each EOL branch has missed since. Updated daily — last refresh 2026-10-05.
3still supported
3end of life
29 Oct 2026next to expire — 2.3
Support lifecycle at a glance
■ supported ■ security fixes only ■ end of life
All versions
Release dates, security support dates and current support status for every Checkmk branch.
| Branch | Released | Security Support ends | Status | Latest |
|---|---|---|---|---|
| 2.5 | 28 Apr 20265mo ago | 28 Apr 2028in 1y 7mo | supported | 2.5 |
| 2.4 | 6 May 20251y 5mo ago | 6 Nov 2027in 1y 1mo | supported | 2.4 |
| 2.3 | 29 Apr 20242y 5mo ago | 29 Oct 2026in 1mo | supported | 2.3 |
| 2.2 | 23 May 20233y 4mo ago | 23 Nov 202510mo ago | EOL | 2.2 |
| 2.1 | 24 May 20224y 4mo ago | 24 Nov 20241y 10mo ago | EOL | 2.1 |
| 2.0 | 9 Mar 20215y 7mo ago | 9 Sept 20233y 1mo ago | EOL | 2.0 |