

Just as Microsoft built its speech-driven assistant Cortana into Windows 10, so Apple built iOS's Siri into macOS. Some new features may not work on older Macs that can run the OS, however. Older hardware will still work with OS X 10.11 El Capitan, which you're probably using now.

MacOS Sierra is a free upgrade and works on any Mac dating back to 2010, and on MacBooks and iMacs from 2009. While Apple's betas tend to be reasonably solid by the time they are widely released, we still don't recommend installing them on mission-critical systems. Of course, you use a beta OS at your own risk. (Registered developers and PCMag had access to a very early beta version before that, and we've been testing it ever since.) If you want early access to the next version of macOS (or the iPhone's iOS) you should sign up at. MacOS Sierra is available as a free upgrade right now, but many people got early access to it by taking advantage of a public beta Apple made available a few months ago. This new edition is better than ever with over 500 fantastic tweaks, hacks, secret commands, and hidden features to completely customize your macOS user experience. Customizing macOS High Sierra is the 6th book in the best-selling Customizing macOS series. You'll also find step-by-step instructions for printing, scanning, networking, sharing, troubleshooting, and going online.

Perfect for new and longtime Mac users, this no-fluff guide to macOS High Sierra is packed with details on system preferences, the desktop, Finder, applications, and utilities.
