Driver name
Driver version (NUT release)
Internal driver version
Version of the internal data mapping, for generic drivers
USB library version
Parameter xxx (ups.conf or cmdline -x) setting
Flag xxx (ups.conf or cmdline -x) status
Current state in drivers lifecycle, primarily to help readers discern long-running init (with full device walk) or cleanup stages from the stable working loop
See
https://networkupstools.org/docs/developer-guide.chunked/apas02.html#_driver_internal_driver_information