1 and macOSSierra are versions of 10. 12, which were released by Apple at the Global Developers Conference in June 20 16. MacOSHighSierra is an upgraded version of Sierra, version 10. 13, which was released by Apple at the Global Developers Conference in April, 1965.

2. Compared with the HFS+ file system used by macOSSierra, macOSHighSierra has added a modern file system called AppleFileSystem(APFS). This file system can make the file copy faster, and the copy does not occupy additional storage space.

3. Comparison of operating system space: macOSHighSierra occupies about10.12.6 more storage space than Mac OS Sierra.

4. Compared with the old version of Sierra, Siri, photo album, Safari, memos and other built-in native applications have improved the user experience and enhanced the functional features.

Extended data

The promotion of macOS by HighSierra, a new generation operating system, is complicated: there are changes in the "internal force" of training systems such as APFS and Metal2 image engine, and there are also direct optimizations of user experience such as making Siri speak more naturally. However, after reeling, the changes of HighSierra can be roughly divided into three categories:

1, implement the new standard. We use the new file system APFS, the new video compression standard High Security Video Coding (HEVC), and of course, the browser engine Webkit, which was originally developed by Apple, and Swift4, which is gradually improving.

2. Provide new development tools. For example, the machine learning suite CoreML, external GPU support, and the new image engine Metal2.

3. Enhancement of native applications. For example, the advanced editing tools in photos and the anti-tracking function of Safari are optimized.

Baidu encyclopedia -macOSSierra

Baidu encyclopedia -macOSHighSierra