There's a 17 month old bounty to add support for the 2015 MacBook: https://www.bountysource.com/issues/35422234-macbook8-1-12-inch-early-2015-keyboard-and-track

There's a 17 month old bounty to add support for the 2015 MacBook: https://www.bountysource.com/issues/35422234-macbook8-1-12-inch-early-2015-keyboard-and-trackpad-don-t-work https://www.bountysource.com/issues/35422234-macbook8-1-12-i.... The 2012 Retina MBP also didn't work correctly at first but that was fixed quickly. The only models that were compatible out of the box were the ones which didn't change much.