I have several nRF6930 beacon kits. Some have a sticker indicating they have a PCA10006 board, on others, the sticker indicates PCA20006. All PCBs are marked 400059 0138RUBR on the PCB, which tallies with the PCA20006 schematic. For every version of the SDK I have looked at (7,8,10,11), a board definition header is provided for PCA20006 but not PCA10006. Version 6 of the SDK includes neither. The nRF6930 documentation only makes reference to the PCA20006.
Is there any effective difference between the two boards, and if so, where can I find documentation?