Questions about AsRock MB Intel 1700 B760 PRO RS/D4

This is a DDR4 motherboard, DDR5 is not supported (see manufacturer's page: https://www.asrock.com/mb/Intel/B760%20Pro%20RSD4/index.asp#Specification). There is a "BIOS" of course, I think you mean a BIOS update? 13th Gen should already be supported in the delivery state.