DXVK-NVAPI 0.9.3 adds initial ARM64 support, DirectX Raytracing (DXR) upgrades

2 Nov 2026 at 10:40 am UTC
By Liam Squires-Hand

DXVK-NVAPI is the implementation of NVIDIA's NVAPI/NVOFAPI library for usage with DXVK and VKD3D-Proton - with a new release out now.

Version 0.9.3 includes ARM64 support, along with updates to the DirectX Raytracing (DXR) features supported - so hopefully this will keep Proton running nicely. It's already included directly with Proton, so you don't need to do anything, Valve will update it for the next set of Proton Experimental updates, and additionally Proton Experimental Bleeding Edge Beta usually always has the latest DXVK-NVAPI.

All the changes in this version are below:

Key Changes

• Support OMM (Opacity Micromaps) for DirectX Raytracing (DXR) through NVAPI. This requires VKD3D-Proton 3.1 or newer and the VK_KHR_opacity_micromap extension, available in NVIDIA driver R615 or newer.
• Add an alternative Reflex implementation for Vulkan titles using the VK_NV_low_latency revision 2 extension, available in NVIDIA driver R615 and newer. This alternative implementation doesn't require a Vulkan layer anymore and thus makes the DXVK-NVAPI Vulkan layer obsolete.
• Support new driver settings from NVAPI R610 headers:
  • NGX_DLSS_NR_OVERRIDE.
  • NGX_DLSS_NR_OVERRIDE_RENDER_PRESET_SELECTION.
  • NGX_DLSS_NR_SL_OVERRIDE.
• Support new driver settings from NVAPI R615 headers:
  • SL_DLSS_OVERRIDE.
• Store NVAPI wrappers for device, command list and command queue in D3D12 private data instead of in a cache map. This should prevent crashes with several titles i.c.w. modding tools.
• Improve reporting for available/free VRAM, the behavior is now closer to NVAPI on Windows.
• Fix a potential race condition during initialization. This fixes a crash in Elite Dangerous when using the EDHM mod.
• Allow Sound Voltex to retrieve output refresh rate info by implementing NvAPI_DISP_GetDisplayConfig.
• Remove Pascal spoofing for War Thunder. This work around is no longer needed. DLSS i.c.w. D3D11 is functional with that title now.
• Add a workaround for the NVIDIA RTX Path Tracing Sample (https://github.com/NVIDIA-RTX/RTXPT) for allowing it to use NVAPI shader extensions without setting DXVK_NVAPI_D3D12_NV_SHADER_EXTN=1.
• Support compilation for ARM64. The release artifact includes an ARM64 build.

🌐 External Sources: GitHub - dxvk-nvapi - v0.9.3 Article taken from GamingOnLinux.com. Tags: Proton, DXVK, Misc, NVIDIA, Open Source, Steam, Valve 7 Likes Some you may have missed, popular articles from the last month:Highlights from the Triple-I Initiative Showcase - October 2026 EditionSteam Beta for October 15 brings a 64bit Linux client, Achievement Sets and moreNVIDIA driver 615.78.08 released for Linux, notes a new feature to help VKD3D-Proton performanceSteamOS 0.4.5 Beta for Steam Frame and Steam Client Update For Frame released All posts need to follow our rules. Please hit the Report Flag icon on any post that breaks the rules or contains illegal / harmful content. Readers can also email us for any issues or concerns.