The release of i-MSCP version 1.6.0 is a bit delayed . We are currently refactoring the code to make it possible to support other distributions such as Centos, Fedora, Leap (OpenSUSE)...
Most of the work has been done already. We will give further details soon.
WARNING Nobody should use the 1.6.x branch (github) right now. There is a lot of works in progress. WARNING