Posting here cuz it is usually storage and server folks who know/care most: Anybody following along remembers some years back when Apple was expected to move from HFS+ to ZFS. They even had a public beta at one point. That project died...likely for both technical and licensing reasons. Data sets continue to grow. Yes, Apple is no longer in the enterprise hardware biz, but it is not uncommon for "pro users" to have many TBs of data, and there is no end in sight with RAW photo and HD video space and performance needs. So, the question is.....what is next, and how far can they stretch HFS+? File Systems are way above my pay grade, but smarter folks are concerned about data integrity and loads of enterprise features....that HFS+ and other legacy file systems don't/can't implement. ZFS seems to gaining traction in the storage world, if only very slowly, with some challenges that keep it from being anywhere close to easy-to-use in an Apple sort of way. Several projects have started and gone by the way side to have a Mac friendly option. OpenZFSonOSX looks hopeful, but it seems to be moving slowly...and it may die on the vine like previous attempts. What really got me thinking about this though...having watched and waited patiently for so many years, was when I noticed that Synology appears to be rolling out Btrfs for their 6.0 OS beta: So....if a relatively small company like Synology can roll out a a modern file system like Btrfs, and have it bootable, customized, and running on very low power hardware resources (CPU/RAM), when will Apple deliver something similar?