GetVersionEx() on Windows lies about actual version by default, starting with Windows 8.1, i.e
it always returns 6.2 indicating Windows 8/2012, even on 8.1 or 10.
In order to get this function to tell truth, additional compatibility manifest is required during
the build. This is described in
Currently, this just affects feedback plugin (the stats show quite a large number of Windows 8 installations, and no Windows 10 for example)