In a new PCN (product change notification), Intel sends work that it is permanently ending Skylake-X based processors, and that is the 9th generation X series.
Skylake-X (mind the X) are the HEDT processors that reside on an LGA2066 package. Roughly 10 Xeon W-2000 series workstation processors have discontinued as well as a handful of 9900 and 9800 X series processors for desktop. You can find the PCN here.
Thanks, SOTN for the news submit.