Current downloads

Check_MK Raw Edition (CRE)
1.2.6 (stable): 1.2.6p16
1.2.8 (beta): 1.2.8b1

Check_MK Enterprise Edition (CEE)
1.2.6 (stable): 1.2.6p16
1.2.8 (beta): 1.2.8b1
1.2.7i3 (innovation): 1.2.7i3p5

Enterprise Edition - Demo Version
1.2.6 (stable): 1.2.6p16
1.2.8 (beta): 1.2.8b1
1.2.7i3 (innovation): 1.2.7i3p5

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.