Taken together, they furnish improved performance over disks using HFS+. These features of the filesystem make it more efficient in handling and storing data and increase the speed with which files are copied and accessed.

You can just create a new volume in disk utility, install to it, boot up in it, then delete your old volume. Wow, working with APFS volumes makes it super simple to do a clean installation of macOS! Sparse files don’t allocate empty blocks.Free space can be shared between multiple volumes.Files can be cloned to reduce the cost of copying.Some of the technical reasons for the improved performance of drives using APFS include: APFS provides improved speed, optimization, and data handling functionality over the HFS+ filesystem.

It replaced HFS+, also known as Mac OS extended, starting with macOS High Sierra and iOS 10.3. The Apple File System (APFS) is currently the default filesystem for Apple computers and mobile devices. Wanna skip the theory part and jump right to the recovery guide? Click here.

Testdisk recover deleted files