As leaks leading up to the event suggested, Apple is launching a new file system called Apple File System that will replace HFS (Hierarchical File System).
APFS is one element of Apple’s new macOS version, High Sierra, and the company says it’s a major contributor to the operating system’s boosted speed. It was first unveiled at last year’s WWDC and Apple has stated it would come to all of its products.
The new file system features native encryption for added security, improved crash protection and instant file and directory cloning for safe saving.
