Comment 93 for bug 1700373

@Uqbar The microcode update is fine and exactly as expected. 2018-01-08 is the release date of the microcode *bundle*, which contains 20 microcodes updated at various times around late November, mid-December 2017.

In the case of his 0x406e3 CPU, the microcode is from 2017-11-16, which is exactly what appears in the log.

And in case you are wondering why there was almost two months between the microcode creation and its release: because it takes time to properly test such low-level changes, and it takes time to create new microcodes for all CPUs.