I commend the FreeNAS team for taking this path. I haven't been in full investigation of Corral but I did roll out the upgrade for my VMware ZFS storage node and found no post-init scripts and limited iSCSI configuration and rolled back to 9.10 U2. That said, gents, lets leave the politics out of it - it takes a bigger person to say "Hey that thing we released isn't actually ready yet and so we're pulling it back from GA to tech preview." Meanwhile, commercial products, I mean big, big commercial storage solutions, make similar roll outs and then drive the product that's not ready to the finish line... but by time they get there it's on fire, leaking oil, full of trash, and everyone jumps out screaming.