This message was posted on behalf of Intel Corporation
Thank you for contacting Intel Technical Support,
We received your inquiry and I understand that you are looking for information on 4th generation updates. Please accept our apologies for any inconvenience this may be causing. We will be more than happy looking for a solution.
Current drivers, we have for Vulkan are for 6th Gen Intel® Core™ processor family and 7th Gen Intel® Core™ processor family. You can find more information on this link https://communities.intel.com/thread/111280