Thus, it boosts performance and helps manage device memory issues.Īpple also introduced new formats for video and photos in this version. It enables the storage and encryption of a large number of files. The Apple file system is the most significant feature it brought. There are few bells and whistles, but the changes are noticeable and positive. High Sierra emphasizes the already-existing benefits of MacOS previous system, Sierra. In essence, High Sierra took what was good with Sierra and developed it into a more comprehensive software.