ILS GS Questions on PMDG 744

I have installed the PMDG 744 Universal Service Update Package, I discovered that when I do the ILS landing, a GS warning will be come up when I reach the DH ........ Actually I will disconnect the Autopilot before the DH, so I do not know wether it is only a bug.... a fake warning or something else ....... Did the PMDG 747 now can recognize the RWY is CATII or CATIII ? Because I did not try to land on a CATIII rwy so I do not know will the GS warning still occured in CATIII RWY ........