DXVK, the almighty translation layer that takes D3D 9/10/11 and spits out Vulkan, that paired up with Wine allows many Windows-only games to perform will on Linux has a new update out.
Version 1.6 went live today with some cleaning up and tweaking done on how they work with Direct3D 10. Now, DXVK no longer needs the d3d10.dll and d3d10_1.dll helpers as they say this "opens up the option to use Wine's implementation of the D3D10 effects framework, which is needed by some games". To be clear, they said this works best on Wine 5.3 or newer.
There's also some minor Direct3D 9 performance improvements, hopefully a crash when capturing apitrace snapshots was solved, some Source 2 games should no longer crash when using their Direct3D 9 renderer, some videos in games showed a green frames/flashing which is also solved and these games should work nicer: A Hat in Time, Dead Space, DoDonPachi Resurrection, Dragon's Dogma, Star Wars: Republic Commando and Yomawari: Midnight Shadows.
See the release on GitHub for the full details.
Wish to upgrade your existing Steam Play Proton install without waiting for Valve/CodeWeavers to update officially? You can just overwrite the existing DXVK files with the release download of DXVK 1.6. You can find your Proton install somewhere like this:
Where x.x is whatever Proton version installed you wish to give a new DXVK.
Inside there you will see "lib" and "lib64", for 32bit and 64bit. Inside each of those, there's a "wine" folder and inside there is a "dxvk" folder and that's where you replace the files with new versions. Do so at your own risk but it's usually harmless. If you mess anything up, to refresh it you can usually just re-install Proton from the Tools menu in Steam.