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WWDC 2017 Keynote: macOS High Sierra (Mac), what’s new?

During its opening keynote for WWDC 2017 held at the McEnery Convention Center in San Jose, California, Apple unveiled macOS High Sierra in addition iOS 11 and watchOS 4. The future major version of its operating system for Macs, which will be released this fall, is already available in beta. It will include new fundamental technologies that will improve the most important functions of the brand’s computers.

With macOS High Sierra, Apple will launch the Apple File System on Mac with a sophisticated 64-bit architecture combining performance, responsiveness and security. Secure (integrated encryption, crash protections and simplified data backup).

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In addition, a new industry standard will appear on Mac with macOS High Sierra: HEVC (High Efficiency Video Coding, or H.265). It offers video compression up to 40% higher than that of the H.264 standard. With HEVC, video streaming is more efficient and occupies less space, without altering the visual quality for the user.

Metal 2

Technology Metal 2, which will be integrated with macOS High Sierra, will add capabilities such as machine learning, virtual reality, and support for external graphics processors for entertainment and professional creative applications to the OS.

Virtual reality

In addition, macOS High Sierra will allow developers to create virtual reality interactive, using the new iMac with Retina 5K screen, the new iMac Pro, expected in late 2017, or any compatible Mac associated with an external graphics processor. It will of course be necessary to have peripherals such as the HTC Vive VR headset or apps such as Final Cut Pro X or SteamVR.


MacOS High Sierra will also arrive with new app features Pictures. The side menu will take center stage. An Import view will display all past imports in chronological order.

Photo collections can be filtered according to their preferred criteria. A new selection counter will keep track of what has been selected and allow you to drag and drop collected images into an album or export them to the desktop. The user can also rotate and mark photos as favorites directly from the toolbar.

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In macOS High Sierra, powerful tools such as Curves or Selective color will be there. In addition, new filters inspired by professional calibrations will give photos a strong visual identity.

MacOS High Sierra will introduce more than a dozen new categories of Souvenirs (pets, outdoor activities, weddings or sporting events). As on iOS 11, new effects will be available for Live Photo (Loop, Rebound and Long exposure. Users will also be able to shorten, mute and select a key photo for each Live Photo.

From Photos, changes made from editing apps like Photoshop will be automatically saved in the Photo Library. Third-party extensions will also be accessible directly from the Photos app.

The People album will also have larger image thumbnails and more relevant groupings. Of course, dozens of other new features will arrive with macOS High Sierra, especially in Safari applications, with Siri, iCloud, in Spotlight, Mail, Notes, Facetime,…