Build list legend
|Version of macOS|
macOS High Sierra, or macOS 10.13, is the fourteenth major release of macOS that was released on 25 September 2017. It was announced on 5 June 2017 at WWDC. 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.