Next-gen?
APFS is not really next-gen, it just appears new compared to HFS+, which is stuck in the early 90's.
HFS+ has the following “features”:
- Case insensitive mode does not work (properly).
- Case sensitive mode is a total failure because we don't live in times of ASCII. Defining what equality of two Unicode strings actually means is hard enough anyway, and not getting any easier by mixing up cases.
- HFS+ stores all the metadata in the first blocks, which makes it perform very poorly. In times of SSD it seems less relevant, but it isn't. It totally cripples backup speed on USB 3.0 HDDs.
Also: The fact that the port of ZFS to OSX was cancelled gives me a very bad feeling about OSX's state in the layers above.