I just wanted to say that this update did break NFS for my situation. I went back after a few days and read the change log to try and figure out if something changed that broke it and saw this:
I only use NFS to store jobs archived on a old production printer (Xerox Docutech 6135 from the 90's), and unRAID worked great until that update.
Thankfully the setting "Tunable (support hard links)." fixed the problem for me.
I just wanted to say please don't ever remove that option! I know people who want it are an edge case, but it really would ruin my year if I had to try and implement and maintain a vm or docker or something just to run a NFS server for those old machine.