[Nut-upsuser] APC BX ...MI series

[Peter Bell]

I'm a long-time user of APC UPSs and apcupsd, but have been experiencing 
issues with recent APC units, although I have three BackUPS CS650 units 
which have had very little issue..

I've recently replaced the APC 1200 unit on my fileserver (running 
Slackware) with a CyberPower UPS and that appears to be well supported 
by NUT.

However, I have an APC BX950MI unit which is currently being replaced 
under warranty.  This unit has never worked well with apcupsd.
I understand that changes have recently been incorporated into NUT to 
handle the BX units.  I have installed NUT onto a Raspberry Pi, running 
PiOS (Bookworm), but NUT pulled from the PiOS repository is only at 
v2.8.0, not the latest.  This works okay with the CS650 APC but I fear 
that it doesn't include the latest BX series fixes.
What do I need to do to to get the BX950 working satisfactorily with 
NUT?  Will an update of the usbhid-ups driver work or do I need the 
complete NUT v2.8.2 from somewhere?

How can I go about this?

All advice gratefully received.