mac OS Sierra will be available during October 2016
Public Beta will be available during July.
What can your Mac do now? Just ask.
Siri makes its debut on Mac, with new capabilities designed just for the desktop. And that’s not the only way your Mac is smarter. macOS Sierra helps you rediscover your best photos, shop more securely online, and work more seamlessly between devices. It can also help free up valuable storage space. Now your Mac does even more for you, so you can do more with your Mac.
Talk about big news. No matter what you’re working on, your favorite personal assistant is always a click away. The handy features of Siri on iOS are now on your Mac, along with brand-new ways to help you with the things you do every day on your desktop.