macOS Sierra ships today

Apple:

Apple® today announced that macOS™ Sierra, the latest major release of the world’s most advanced desktop operating system, is now available as a free update. macOS Sierra brings Siri® to the Mac® with intelligent and helpful features users know and love from iPhone® and iPad®, along with all-new capabilities designed specifically for use on the desktop. Features like Universal Clipboard, iCloud® Desktop and Documents, Auto Unlock and Apple Pay® on the web help your Mac work even better with other Apple devices. And Photos gets an update with a new Memories feature that automatically creates curated collections of your favorite photos and videos.

The feature I’m most excited for is Auto Unlock!