bridge bios

I have got a deal for a Ryzen 5 5600, and I want to swap my 2600 on my Asrock ab350m pro4 MB. However, I cannot find any info on how should I do the BIOS upgrade. My current version is 5.10 and from what I see before I upgrade to 7.40 I need to install the 7.00 bridge BIOS. And there is my...