The Wine project has released VKD3D 1.13 as the newest version of this open-source code for mapping Microsoft's Direct3D 12 API atop the Vulkan API for helping to accelerate Windows games and applications on Linux.

VKD3D remains the upstream Wine project for D3D12 atop Vulkan while Valve's Steam Play (Proton) uses the downstream VKD3D-Proton code. VKD3D 1.13 is the new feature release for this translation library although only with a few notable changes:

- Basic loop unrolling support in the HLSL compiler.
- Effects compiler support for several version 4.0+ state objects.
- Miscellaneous bug fixes.

There are a number of fixes to libvkd3d and libvkd3d-shader, new interfaces, and other smaller additions.

More details on the VKD3D 1.13 release via WineHQ.org .