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Intel(R) UHD Graphics 620 decode related release notes request


Intel(R) UHD Graphics 620 decode related release notes request

I am investigating a VP9 decode issue for Chrome:

  • Intel(R) UHD Graphics 620
  • / Enum\PCI\VEN_8086&DEV_3EA0&SUBSYS_8549103C&REV_02
  • i7-8665U CPU
  • WinVer 10.0.18363 - 19H2 - 1909

My customer has a base image with DCH   

It is not immediately possible to experiment with different driver versions. For that reason and approvals required I wish to review documentation first. I want to understand if any similar video decode issue was resolved at driver level since DCH 25.x release.


  1. Is there a cumulative release notes package available for DCH from 25 through 30?
  2. Does officially support 19H2? - or was 19H2 first supported in a later revision? 
  3. DCH 25.x.x branch is no longer available from the usual DCH download location. Is there a reason this branch is no longer available? 
  4. Any other info on potential decode issue appreciated.
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