macOS High Sierra Public Beta 2 is Now Available

The macOS High Sierra 10.13 Public Beta 2 is now available. Apple wants as many users as possible to test macOS High Sierra to provide constructive feedback before the official release later this fall. To participate in the free Public Beta, you must enroll in the Apple Beta Software Program using your Apple ID.

Enroll in the Free Apple Beta Software Program

macOS High Sierra (Your Mac. Elevated.)
New technologies at the heart of the system make your Mac more reliable, capable, and responsive — and lay the foundation for future innovations. macOS High Sierra also refines the features and apps you use every day. It’s macOS at its highest level yet.Coming this fall

Get a boost with new technologies.
macOS High Sierra introduces new core technologies that improve the most important functions of your Mac. From rearchitecting how it stores your data to improving how you watch videos to unleashing the full power of the graphics processors, it’s all central to today’s Mac experience.

Apple File System.

Your data is under new management.
Your documents. Your photos. Your mail. Your apps. To your Mac, everything you care about is data. And a file system is what organizes all that data into files and folders you can access with a click. Our current file system was designed in the early days of Mac, and it has performed beautifully ever since. But today’s flash‑based Mac opens up new possibilities for innovation, so it’s time to lay a new foundation. With macOS High Sierra, we’re introducing the Apple File System to Mac, with an advanced architecture that brings a new level of security and responsiveness.


A new 64‑bit architecture is designed for today’s flash technology and ready for tomorrow’s new storage capabilities.


Designed to make common tasks like duplicating a file and finding the size of a folder’s contents happen instantly.

Safe and secure.
Enjoy even more peace of mind with built‑in encryption, crash‑safe protections, and simplified data backup on the go.

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