[Qt-creator] What's the QtC compiler version used for MS binary distribution?

[Hugo Parente Lima]

Hello,

What compiler version is used on QtCreator binary distribution for MS 
Windows 64bits?

I want to go through the pain of install a VM to compile my plugin[1] 
on Windows and create a small installer.

If someone have a recipe wrote to do this boring task, I would 
aprreciate that.

Thanks.

[1] http://hugopl.github.io/RubyCreator/