macOS High Sierra offers an all-new file system, support for High-Efficiency Video Coding (HEVC) and an update to Metal, Apple's advanced graphics technology that powers everything from machine learning to virtual reality content creation. macOS High Sierra also includes a number of refinements to the apps Mac users enjoy every day, including Photos, Safari and Mail.
Mac owners without those machines can also gain access if they pair the macOS High Sierra device with a compatible external GPU. Those are the big silver box style manufactured between June 2012 and October 2013 when the black glossy cylinder style Mac Pro was introduced.
Announced at WWDC, High Sierra is the 13th major version of Apple's desktop operating system.
High Sierra also adds support for a new photo and video standards: HEIF and HEVC, respectively. Rebooting again seems to fix the problem.
Before you go ahead with the download, do take a moment to consider which route you wish to take in order to install macOS High Sierra. HEVC enables users to watch 4K video files at full quality, while requiring 40 percent less storage space than the current H.264 standard. Leading VR companies are working with Apple to drive VR innovation on the Mac with features coming later this year.
VR has finally landed on Mac. Valve is optimizing its SteamVR platform for macOS and enabling connection of the HTC Vive headset, while Unity and Epic are bringing their VR development tools to macOS.
The Photos app gains a more robust editing suite, improved organizational tools and a better sidebar. The new Shutterfly extension for Photos allows users to create, customize and purchase Shutterfly photo books without leaving the application. Live Photos can now be edited with fun effects, like Loop, Bounce and Long Exposure, and users can also choose a different key photo.
The Safari web browser will include a new service called "Autoplay Blocking", which stops media from autoplaying across the internet. All the computation and processing of Core ML doesn't keep track of the user's personal data. The Touch Bar on MacBook Pro gets new Control Strip options plus an improved color picker and more video controls.
Spotlight will now show flight details, and Notes is getting some added functionality with the ability to pin notes.