When it was announced in WWDC, Apple clearly said APFS would be released in 2017. As announced then, what's available now is a developer preview. > "So Apple F

When it was announced in WWDC, Apple clearly said APFS would be released in 2017. As announced then, what's available now is a developer preview. > "So Apple File System will ship, by default on all devices in 2017. So to summarize, Apple File System will be the default file system for all Apple products 2017,... " [1] [1]: https://developer.apple.com/videos/play/wwdc2016/701/ https://developer.apple.com/videos/play/wwdc2016/701/ (go to the transcript and search for "2017")