MacOS High Sierra

macOS High Sierra is a version of macOS developed by Apple. It is set to be released in late 2017. This version introduces various changes to core macOS components, including a new filesystem (APFS) designed to replace the older HFS+ filesystem used in every macOS release prior to it.

Alongside APFS, a new Metal API was introduced, including fixes for supporting external GPUs, and providing VR APIs. Additionally, there were updates to the Photos app, new privacy tools in Safari, and a new H.265 (HEVC) hardware decoder service.