Current downloads

Check_MK Raw Edition (CRE)
1.2.6 (stable): 1.2.6p4

Check_MK Enterprise Edition (CEE)
1.2.6 (stable): 1.2.6p4
1.2.7 (beta): not released yet

Enterprise Edition - Demo Version
1.2.6 (stable): 1.2.6p4
1.2.7 (beta): not released yet

For more information and other versions please visit the download page.

Interview

Nagios' chief developer Ethan Galstad interviews Mathias Kettner on Check_MK. Read the full interview here.