Computerworld - https://www.computerworld.com/article/3247744/microsoft-windows/microsoft-reinstates-meltdownspectre-patches-for-some-amd-processors-but-which-ones.html#tk.rss_all
As we rappel down the Patch Tuesday rabbit hole this month, Microsoft just announced that it’s going to start pushing its January Windows security patches onto AMD processors again. But it neglects to mention which ones. Per a late-night change to KB 4073707:
Microsoft has resumed updating the majority of AMD devices with the Windows operating system security update to help protect against the chipset vulnerabilities known as Spectre and Meltdown.