As originally promised, Apple today released the public version of macOS High Sierra.

Installing macOS High Sierra

Apple’s latest and greatest operating system is available as an over-the-air update via the Software Update mechanism on any Mac running an older macOS version. The standalone macOS High Sierra installer can be grabbed at no charge from Mac App Store.

This lets you create a USB install drive to install macOS High Sierra to multiple machines without redownloading, as well as perform clean installs and keep a copy of the installer safe for troubleshooting purposes.

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Apple provides a nice tutorial detailing the steps for upgrading to macOS High Sierra.

The system requirements for macOS High Sierra are the same as those for macOS Sierra:

  • MacBook or iMac (late 2009 or newer)
  • MacBook Air, MacBook Pro, Mac mini or Mac Pro (2010 or newer)
  • MacBook (late 2008 aluminum or early 2009 or newer)
  • Mac mini (early 2009 or newer)
  • MacBook Pro (mid/late 2007 or newer)
  • Mac Pro (early 2008 or newer)
  • Xserve (early 2009)

iF your Mac runs macOS Sierra it can run macOS High Sierra, too. To see your Mac’s model year and other underlying hardware information, choose About This Mac from the Apple menu.

OVERVIEW: Apple’s new HEIF/HEVC media formats in iOS 11 & macOS High Sierra

Some features require a more powerful Mac. For instance, playback of 4K HEVC video requires a Mac running a sixth‑generation Intel Core chip or newer. For the full list of features supported across different Macs, check out Apple’s official macOS Feature Availability webpage.

For the security content of macOS High Sierra, seeApple’s support document.

Key new features in macOS High Sierra

One of the biggest updates, macOS High Sierra brings many new features to Mac users.

Apple File System

macOS High Sierra brings the new Apple File System (APFS) to your Mac. APFS is the successor to HSF+, the company’s longtime file system on Macs, and is also the default file system in iOS, watchOS and tvOS.

While there were no big issues with HSF+, it wasn’t build for modern storage like SSDs. APFS was built not just for today’s storage needs, but storage needs of the future as well.

OVERVIEW: What to know about transitioning to APFS

APFS comes with built-in encryption out of the box that makes securing your Mac easier than ever. Your data is now more protected with perks like automatic system snapshots, making recovering data easier and backups (like Time Machine) better than ever.

APFS is fully designed for 64-bit architecture.

One of my favorite features is the speed and efficiency.

APFS can help you save space in various ways, especially when duplicating files. On a traditional drive, copying a file or folder literally makes a copy. On an APFS drive, however, only one copy of the file exists on the disk and all of its copies are referenced.

As a result, duplicating a file on an APFS drive no longer takes up any additional space. Plus, APFS can literally copy a half a gigabyte or larger file instantly and gather the size of a folder with almost no delay. By speeding up common file operations, APFS makes your Mac more responsive than before.

Safari 11

Safari 11 in macOS High Sierra is faster and more responsive than before.

Apple boasts many new JavaScript benchmarks that keep Safari ahead of the other popular browsers. More interesting, however, are its new site-by-site features. You can now go in, on a per-site basis, and set up individual settings such as auto-Reader mode, microphone and camera access, zoom level, content blockers, auto-play and location privileges.

Autoplay blocking is another favorite feature.

Ever land on a site that autoplays a video with sound? Safari now stops that cold.

You now have the options of stoping all videos, allowing all videos, or just pausing those that contain audio. This is a super handy feature that has worked very, very well in my testing.

Photos

Of all the apps in High Sierra, Photos has seen the biggest improvements.

There’s now a wealth of new features for amateur and pro photographers alike. You can organize your library quicker with all-new filters, a new persistent sidebar lets you sort media by type, Memories now include over a dozen new slideshow types and more.

Plus, Photos now comes with built-in support for animated GIFs.

The editing experience has received significant improvements and a brand new layout.

The Edit view now provides precise curve-based editing, several new professional filters and the ability to open images directly in a third party app for more in-depth editing. And with all-new Project Extensions, third-party apps can make various project-based features available to Photos, like creating print products, websites or slideshows.

And last but not least, macOS High Sierra brings support for HEVC (High Efficiency Video Coding, also known as H.265, which is the latest standards-based video compression technology) and HEIF (High Efficiency Image Coding) formats that can cut storage consumption in half.

Of course, a more powerful Mac will deliver better HEVC performance. Apple says that encoding and editing of 4K HEVC content requires a Mac with a sixth‑generation Intel Core processor or newer, like the latest iMac and MacBook Pro models.

Tidbits

There are many, many other under-the-hood enhancements in macOS High Sierra.

For instance, you can now snap a Live Photo of a FaceTime call with both parties being notified when a photo was taken. macOS High Sierra is also the first Mac operating system release with comprehensive support for virtual (VR) content creation and rendering—something many people will be looking to take advantage of on their Mac.

Even the Touch Bar system shortcuts have received a boost in High Sierra with the addition of all-new buttons for AirPlay, NightShift and Picture-in-Picture while watching a video.

Roundup: 100+ features in macOS High Sierra

The following new technologies and features in macOS High Sierra make your Mac more reliable, capable and responsive whilst laying the foundation for future innovations.

Core OS

Metal 2

  • Metal 2 has been optimized for battery
  • It powers virtual reality (VR) rendering and external GPUs in High Sierra
  • Used throughout the system, it enables smoother animations for things like Exposé
  • It’s faster than before, thanks to precompiled shaders, fine-grained resource ldntrol, multithreading support and the ability for your Mac’s GPU to take more control of the graphics and compute pipelines
  • Metal’s Performance Shaders bring deep support for GPU-accelerated machine learning used in speech recognition, natural language processing and computer vision
  • New Core ML framework provides easy integration of machine learning models into apps, supporting features like face tracking, face detection, landmarks, text detection, rectangle detection, barcode detection, object tracking and image registration

Media & VR support

  • Support for Valve’s SteamVR platform and HTC’s Vive VR headset
  • Support for the lossless FLAC audio format in QuickLook
  • Support for creating immersive 360-degree video and advanced 3D content with apps such as Final Cut Pro X, SteamVR, Epic Unreal 4 Editor and Unity Editor
  • HEVC/HEIF support
    • Support for the H.265 video format, also known as HEVC, that delivers up to 40 percent smaller video files than H.264, the current standard for video compression, at the same visual quality
    • HEVC enabling high-quality video streaming on networks where only HD streaming was previously possible
    • Support for the new HEIF image format with up to 2x smaller files than JPGs
  • Support for external GPU enclosures (currently limited to external displays) on any Mac with Thunderbolt 3 connectivity for VR content creation and increased performance in apps that use Metal, OpenCL and OpenGL

Apple File System

  • APFS is more efficient than HFS+ and saves you disk space
  • Helps protect data from power outages and system crashes
  • Keeps your data secure with native encryption
  • It supports taking snapshots of system files, which makes backups easier
  • Copying files/folders and getting a folder size is instantaneous
  • Specifically built for flash storage
  • 64-bit architecture makes APFS ready for tomorrow’s new storage capabilities
  • Existing drives can be converted to APFS with Disk Utility

Finder

  • Task Icon in the Finder now allows you to Clean Up and Clean Up by type
  • Default Favorites destinations now include Airdrop, Recents, Apps and Downloads
  • Toolbar changes: QuickLook’s eye icon is now removed and the order and spacing of icons has been modified slightly

Mail

  • Saves up to 35 percent of disk space
  • Top Hits puts the messages most relevant to your search at the top of the message list, based on the mail you’ve read, the senders you reply to, your VIPs and more
  • The more you search, the smarter it gets
  • Split-screen view with inbox on one side and composer on the other

Messages

  • Messages notification can now be marked as read, not just replied to
  • Messages now saves your entire message history in iCloud to save space on your Mac and let you access all your conversations and attachments when you sign in to a new device

Notes

  • Add tables to your notes: type in cells, make edits and move rows and columns
  • Your most-used notes can be pinned to the top of Notes
  • Text search now highlights words in your notes
  • View documents scanned with Notes for iOS 11

Photos

  • Photos is now more responsive
  • Support for HEIF images, HEVC videos and animated GIFs
  • Always-on sidebar with your albums albums and organization tools for sorting media by type (selfies, Live Photos, bursts, etc.)
  • Expanded Import view shows all of your past imports in chronological order
  • Navigation on the Photos tab: Photos, Moments, Collections & Years
  • New toolbar buttons: Auto-Enhance, Rotate and Favorites
  • Rotate and favorite batches of images right from the toolbar
  • Details button has been removed from the bottom
  • Edit button now reads “Edit”, no longer shows sliders graphics
  • “Live” label on Live Photos has been relocated to the top-left side
  • Filter photo collections by your favorite criteria
  • Selection counter keeps track of what you’ve selected, allowing you to drag and drop collected images into an album or export them to the desktop
  • Memories enhancements: All Memories and Favorites tabs, play a slideshow from a Memory, block Memories and get info on a Memory
  • Memories curates your photos and videos around several new topics: babies, pets, outdoor activities, performances, weddings, birthdays and sporting events
  • New editing layout with tabs across the top for Adjust, Filters and Crop
  • Support for editing depth-of-field Portrait photos
  • New Compare button while editing photos to see the original image
  • New filters: Vivid, Dramatic Warm, Dramatic Cool, Vivid Cool, Vivid Warm, Mono, Silvertone and Noir
  • Fine-tune color and contrast on your photos with curve-based editing
  • Selective Color adjustment lets you make any color within a defined color range more saturated
  • Adjust the hue, saturation and luminance of one hue without effecting the rest
  • Process photos in external editors like Photoshop or Pixelmator and have the changes automatically saved back in your Photos library
  • Video effects for Live Photos: Loop (turns your Live Photo into a looping video), Bounce (plays the action forward and backward) and Long Exposure (creates a DSLR‑like effect that blurs water or extends light trails)
  • You can now trim, mute and select a key photo for each Live Photo
  • Support for Apple’s new Project Extensions allows developers to bring project-based features to Photos for things like ordering framed prints, creating web pages, exporting slideshows and using other publishing services like Animoto, ifolor, Shutterfly, WhiteWall and Wix
  • People album now uses larger thumbnails and more accurate groupings
  • Named and recognized faces stay in sync across devices if you use iCloud Photo Library

Safari 11

  • Increased power efficiency
  • Additional web standards support and performance optimizations in WebKit
  • Intelligent Tracking Prevention:
    • Identifies cross‑site tracking data and automatically removes it
    • Uses local machine learning to identify advertisers and others who track your online behavior
    • Keeps helpful cookies intact
    • Increases privacy and makes webpages load faster
  • Per-site settings:
    • Page zoom level
    • Push notifications
    • Content blockers
    • Camera access
    • Microphone access
    • Location access
    • Auto Reader mode
  • Auto Reader mode always renders websites without ads, navigation and other distractions
  • Autoplay Blocking stops those pesky videos with audio from playing automatically

Siri

  • Revamped Siri app icon appears in the Dock, Touch Bar and elsewhere
  • Siri’s listening interface has been revamped
  • New option in accessibility preferences for typing to Siri
  • Siri features requiring Apple Music:
    • Siri learns your preferences to offer music recommendations tailored to you
    • Siri as your personal DJ: ask your personal assistant to make a playlist, play something mellow and more
    • Get answers to music trivia such as album notes, songs, albums and artists
  • Siri’s more natural voice sounds much better than before with more changes in expression, intonation, and emphasis based on what she’s saying

Spotlight

  • View flight path on a map and current flight information like departure and arrival times, terminals, gates and delays
  • Spotlight now presents multiple Wikipedia entries, where applicable

iCloud

  • Share a 200GB or 2TB iCloud storage plan with your entire family (requires Family Sharing) so that each family member can store their own photos, videos, documents and more
  • Share any files stored in iCloud Drive with a link
  • Compatible third-party apps can work right within iCloud

Miscellaneous

  • New macOS High Sierra wallpaper
  • Share a 200GB or 2TB iCloud storage plan with your entire family (requires Family Sharing) so that each family member can store their own photos, videos, documents and more
  • Share any files stored in iCloud Drive with a link
  • Compatible third-party apps can work right within iCloud
  • Take Live Photos during FaceTime calls and save it automatically in your Photos library, with both participants receiving a notification that the photo was taken
  • Universal Clipboard now works between Macs, not just between macOS and iOS
  • New Touch Bar controls: AirPlay, Night Shift and Picture-in-Picture when playing videos
  • Lock your Mac’s screen from the Apple menu
  • The Volume menu bar item is split into two buttons
  • Bilingual input support for English and Japanese input
  • Improved video captioning for Japanese
  • Hindi is now available as a system language
  • New San Francisco Arabic system font
  • The Info button inside of Disk Utility has moved to the right
  • Swift 4 brings efficiency and stability to Mac apps

It is a major release, don’t you agree?

Will you update to High Sierra?

macOS High Sierra is a very impressive release, especially knowing Apple has put a lot of effort into optimizations for power users and pros that depend on their machines day in and day out.

What are your favorite improvements in macOS High Sierra, and why? Will you be updating your computer to the initial High Sierra release or wait for a 10.13.1 update.

Let us know in the comments!

  • Aman kapoor

    Not showing in the updates tab

    • DragonPoo

      It’s not really an update. It does show up if you search for it, though.

    • Jose Gonzalez

      Just click on the “Featured” tab at the top and it will show up there. Click on it and click to download it.

    • It doesn’t show up as an update because it’s an installation application that you have to download yourself. You can find it in the Mac App Store’s main page, typically at the top of the app. Keep in mind: it will be like this every year, unless Apple is issuing a minor update to the existing operating system.

      • K3NSH1R0

        I’ve done this for 5 years and still never learn lol

  • Pedro Govea

    This MacOS version looks like the iPhone 8: just a revision of an older product.

  • Hektōr

    macOS High Sierra comes with the new version of iTunes embedded already? Can someone confirm this? I don’t want to update my iTunes version yet.

    • Alex Bogdanov

      you could update iTunes separate if you want

  • Ayoub Hamadi

    For anyone who has tried this version!
    Does it work well when you install the system on an external SSD?
    I have an iMac, and I use an external SSD (Samsung T3) !

    • masrodjie

      On High Sierra, External Samsung SSD T3 won’t work using T3 Login Activator. It’s show message “No Samsung T3 devices are connected” when you plug in. Have to plan to back to Sierra until this issue solved.

      • Ayoub Hamadi

        Thank you, I’ve tried it and it works fine!

      • masrodjie

        I was trying to install SSD T5 Software for My Samsung SSD3 on High Sierra and finally it’s works. Never think it’ll work before and you said it working so i’m finding out. Thanks!

      • Ayoub Hamadi

        welcome dear !

  • Mark

    So if you are going from Beta to Public version, download it and install it via App Store? Or is the last beta the public one like the iPhones?

  • Rick Hart

    Anybody know the build #?

    • Alex Bogdanov

      17A365

  • I’m running a 2013 mac Pro, 64 gig ram.. and when high sierra goes to sleep if i leave my office for longer than 30 min.. the system can’t be woke. it freezes. as in, reboot, goodbye anything I was working on. #awesome.