Apple releases macOS High Sierra 10.13

Apple has just released the newest version of its operating system for Macs, macOS High Sierra, to the public. macOS High Sierra is a free download that’s available today for everyone who has a compatible Mac.

macOS High Sierra is designed to improve on the previous macOS Sierra operating system with some major under-the-hood upgrades and a handful of outward-facing changes.

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)

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


  • 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


  • 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 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


  • 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 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


  • 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


  • 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


  • 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


  • 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

macOS High Sierra can be downloaded directly from the Mac App Store or through the Software Update function in the Mac App Store. Some users are seeing an error that prevents installation, so the update may still be propagating.

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