macOS High Sierra

macOS High Sierra
Version of macOS
Preliminary name
Latest build17G14042
Release date2017-09-25
Support end2020-11-12
macOS Sierra (10.12)
Replaced by
macOS Mojave (10.14)

macOS High Sierra (10.13) is a version of macOS developed by Apple, which was released on 25 September 2017. This version introduces various changes to core macOS components, including a new filesystem (APFS) designed to replace the older HFS+ filesystem used since Mac OS 8.1. This version also introduced separate updates (BridgeOS) for the ARM co-processor included in certain Macs.

Features[edit | edit source]

  • APFS is a new filesystem that replaces HFS+ and uses Copy-on-Write, containers, and encryption to increase performance on SSDs.
  • A new Metal API, including additional support for VR headsets and external GPUs.
  • Updates to the Photos app.
  • New privacy tools in Safari, including Intelligent Tracking Prevention.
  • New H.265 (HEVC) decoder service (with additional hardware acceleration on certain Macs).
  • New HEIF decoder service for HEIC-formatted images.
  • Support for FLAC and Ambisonics file formats.
  • Swift 4 support (in Xcode 9).
  • Support for T2 chips.

Builds[edit | edit source]

Internal[edit | edit source]

Beta[edit | edit source]

Gold Master[edit | edit source]

RTM[edit | edit source]

10.13.1[edit | edit source]

10.13.2[edit | edit source]

10.13.3[edit | edit source]

10.13.4[edit | edit source]

10.13.5[edit | edit source]

10.13.6[edit | edit source]