Are you considering upgrading to the future Ryzen processors with 3D V-Cache but are currently using a motherboard with the 300 chipset? Well, MSI appears to be introducing "hidden" Ryzen 5000 support.

MSI released a BIOS update in November for select older motherboards equipped with 300 chipsets. This not only adds Windows 11 support to the boards but also silently and covertly adds support for Ryzen 5000 (and presumably future refresh models).

While not listed in the BIOS description of the November update, the mobos appear to be competible. The Series 300 motherboards could support even the future Vermeer-X processors with 3D V-Cache. However, until that time comes, the new CPUs must be introduced. The following section contains a list of all boards whose BIOS should be compatible with Ryzen 5000.

It appears that not all Ryzen 5000 processors and motherboards are compatible. The 5000G APUs (Cezanne) appear to be unsupported. MSI 300 series motherboards for Ryzen 5000 - BIOS versions:

MSI 300 series mainboards get AMD Ryzen 5000 BIOS Support