We do plan to upgrade LSI FW for all G4 hardware, and this requires reboot on each host - we need to boot the host with iso file in order to upgrade FW.
Issues we have seen related to LSI FW was mainly on different models (not NX-1065-G4), but we suspect G4 hang issue *could* be exacerbated by old LSI FW.
As this is not confirmed to be an issue yet and we only do this as a proactive measure, we don't have any field advisory yet.