Anyone know what was updated in ASUS Hero X 2004 BIOS? It says "Performance improvements". I wonder if it's just another performance improvement related Melton or whichever security flaw.
I don't have the Hero, I have the Code X, but I think the BIOS updates are essentially the same.
I don't think there was any performance improvements or security fixes IMHO. ASUS neglected to include the latest CPU microcode and Intel Management Engine firmware, which both have significant security vulnerability fixes. Any other changes in the BIOS besides these two would not involve security fixes and I see no evidence for performance improvements.
I updated my Max X Hero (wifi) to BIOS 2004 and have not noticed any improvements or problems. It did update MEI but not CPU ucode. I am on the Fast Ring and my ucode updated to 906EA revision 00B4 when I updated to Windows 10 v1903 build 18917.10000. You can also get the ucode update through a Microsoft update. The exact update Microsoft KB update depends on which version of Windows you are running.