I just got the latest Raspberry Pi 3B+ and was surprised that 4 new connector prongs have sprouted up out of the board near the external connector block! They affect the connection to the Bareconductive Pi Hat!! Beware how you put the Pi Hat onto the Raspberry board, as the new connectors will definitely short out if you don't slip in a thin plastic insulator for protection. Please pass this information on so people don't blow their boards.
73, WD0UG, Doug