Apple giveth, and Apple taketh away — the Escape key
In Apple's 10.12.1 macOS update, the file 'ApplePaySplashSA.tiff' seems to spilled the beans on Apple's new MacBook Pro's (and possibly other laptops') contextual function row key replacement. I'm guessing this change won't make it's way to Apple's Magic Keyboard for some time... but for users of Apple's laptops, having a 'software-defined' escape key might be a pill that's hard to swallow.