Tipster @Greymon55 claimed that AMD's upcoming Ryzen refreshes with 3D V-Cache will enter mass production by November. This is in line with AMD's announcement that 3D V-Cache Ryzen CPUs will hit the market by Q1 2022, likely as a stopgap against Alder Like while Zen 4 is finalized for a Q3 2022 release.
https://www.notebookcheck.net/AMD-s-3D-V-Cache-refreshed-Ryzen-chips-are-slated-to-start-production-in-November-hints-tipster.575052.0.html