Apple will share news regarding APFS for Mac Fusion Drives “very soon,” claims Apple’s software engineering VP, Craig Federighi.
Short for Apple File System, APFS was introduced with the arrival of macOS High Sierra. It’s optimized for modern Apple devices that increasingly rely on flash storage, but Apple’s Mac Fusion Drives — which combine regular hard disks with a small amount of flash storage — weren’t supported beyond the first few beta versions.