SEAGATE SMB V3.1.1

SHUTTLE SMB V1.5

QNAP SMB V2.1

NETGEAR SMB V1.5

A lot of these NAS hardware providers do not feel compelled to upgrade their firmware for us.
Pretty sad when hardware EOL is less than five years...

Recently upgraded all the workstations (and their corresponding recovery drives) - then I got a rude shock when I attempted to do a restore last week, and it refused to read from our backup NAS that was running SMB 1.5 or 2.1
(I forget which...) I had to rummage around for an older version Recovery disk!
I only stumbled on to this on the weekend, when I had to restore a backup (just after naively doing the Veeam Agent upgrade on all of our workstations )
It would be helpful if you would put a big red WARNING next to that "upgrade" link!!