CoreHumanistSans Light and Bold are now available at Fontspring.
http://www.fontspring.com/fonts/fonts-by-alex/corehumanistsans

You can view a PDF specimen here http://www.fontsbyalex.com/images2/CoreHumanistSans_specimen.pdf

The free Regular version is updated to version 1.1, with a number of small fixes and changes, mainly concerning accented characters and ligatures and harmonisation with the other styles. It can be downloaded from http://www.fontsbyalex.com/