macOS High Sierra preview: It's what you can't see that counts

You can tell by its name: The next version of Apple's macOS, High Sierra, isn't a huge and transformative update. Instead, like Snow Leopard and Mountain Lion, the new OS refines what came before it. It's hard not to feel a bit disappointed, though, since last year's macOS Sierra was also a modest update. It brought Siri to the desktop and Apple Pay to the web but didn't fundamentally change how we used Macs. While the new OS isn't flashy -- you'll barely even notice you've upgraded -- it's an important stepping stone for Apple.