The latest drivers for the X99 Chipset is from 2019 (version 10.1.18121.8164).

It is no longer available on Intel's webpage for whatever reason,
but you can still find it here:

Intel Chipset...

Why must the support for HEDT platforms be cut so soon?
Only the X299 is supported, but not the previous X99.

Whilst for the other platforms, the support goes several generations back
(like for...

Does this new driver (10.1.1.42) support older Intel chipsets, like the Intel X58 (Socket LGA 1366)?
I have an older computer with this chipset in it, and it's still running 10.0.27 (from 2015).
...