i was just about to ask this as well my auros elite x570 is still showing the latest bios update as AGESA 1.0.0.3 ABBA so dont think gigabyte have released it yetWhich exact mobo are you referring too?
Because when I Google 'Gigabyte Master' I find the Auros master x570 which is on BIOS F7b ABBA. So not 1.0.0.4 Agesa.