mXDriver 17.1.1 is based on AMD’s Radeon Software Crimson ReLive Edition 17.1.1 and brings the usual optimizations from AMD (newly supported games and bugfixes) as well as support for Resident Evil 7. Vulkan support is also included and gives Doom a big fps boost. Please note: Newer versions of the Vulkan API (1.0.26+) don’t work with the Vulkan Stardust Demo although other applications like Doom work great in Vulkan mode.
If you have troubles running a Vulkan application, which ran with mXDriver 16.9.1 Reloaded (Vulkan API 1.0.21), than it should be sufficient if you replace amdvlk64.dll in C:\Windows\System32 with an older version. mXDriver 17.1.1 comes with a newer version of amdvlk64.dll, to get version 1.0.21 of amdvlk64.dll you can just use the file from mXDriver 16.9.1 Reloaded. The file is located in the ZIP-Archive under Packages/Drivers/Display/WT6A_INF/B******/ (the * are placeholders for a sequence numbers which change with every release). If this advice does not help you please let me know in the comments section. Read more mXDriver 17.1.1 out