It means you go to the Official downloads part on the feral hearts website, and download a patch for the Mac FH ONLY! After that, you run it, its fairly simple, if you need instructions on it, then after you download it a little box pops up, double click the patch that was downloaded and it should download to your game, dont have Fh open as you do this btw. Then you should be able to play, hope this helps.
