ASUS gets asked about BIOS updates for X370 to support Ryzen 5000 similar to ASRock, they reply by saying that there is no official support not even from ASRock, when presented with
AMD is going out of its way to prevent further bioses for zen 3 on x370 : r/Amd
AMD Confirms Zen 3 Ryzen 4000 CPUs Will Work In These Socket AM4 Motherboards | HotHardware
Why is Amd not making any statement about B350/X370 Zen 3 support? Also a few concerns about the upgrade path that I should take. : r/Amd
AMD bids adieu to socket AM4 by extending Ryzen 5000 Zen 3 support to all 300series AM4 motherboards including the A320 chipset - NotebookCheck.net News
AMD bids adieu to socket AM4 by extending Ryzen 5000 Zen 3 support to all 300series AM4 motherboards including the A320 chipset - NotebookCheck.net News
ASRock is the first vendor to deliver Zen 3 support to an AMD X370 motherboard | OC3D News