Just upgraded. Appears to work fine. I haven't had issues such as lost asic chains etc. So can't say if this update helps with that or any other issues.
I'm running 2 tubes with 1 ctrl board configuration and just like with the previous FW, no problems with this arrangement either.

Root pw is still the same: t1t2t3a5

https://i.imgur.com/SAaaYuy.png