ShutterCount version 2 was not able to read the number of shutter actuations from recent EOS cameras (see EOS magazine July-September 2017, page 12). However, a few days after the magazine was published, ShutterCount version 3 was introduced and this is compatible with the EOS-1D X Mark II, 5DS, 5DS R, 5D Mark IV, 80D, 77D, 750D and 800D, though only with Mac OS 10.7 or later (not Windows). Version 3 also offers compatibility with the EOS 1300D.
Find out more at http://www.direstudio.com/shuttercount/