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DX Compiler Release for July 2026

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@alsepkow alsepkow released this 29 Jul 17:35
· 1 commit to release-1.9.2607 since this release
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v1.9.2607
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DXC Release Highlights

This release of the DirectX Shader Compiler (DXC) adds a set of HLSL language enhancements, SPIR-V backend improvements, and broad correctness and stability fixes.

HLSL Language

  • Added auto for C++11-style type deduction (#8452).
  • Added the [[nodiscard]] attribute (#8462).
  • Added bit-precise floating-point literal suffixes (#8478).
  • >> no longer requires surrounding spaces in nested template arguments (#8453).
  • The volatile keyword is now disallowed (#8391).
  • groupshared parameter attribute now works on templates (#8217).

SPIR-V Backend Improvements

  • Added sampler and resource heaps for textures (#8281).
  • Function parameters can now be decorated with inline SPIR-V (#8103).
  • Fixed vk::BufferPointer cast methods (#8365).
  • Fixed layout-rule propagation for ConstantBuffer/TextureBuffer function variable and parameter aliasing (#8244).
  • Fixed counter handling in a direct return statement (#8215).
  • Fixed OpSpecConstant for composites (#8278).

Compiler Quality and Stability

  • Numerous correctness fixes across the HLSL front-end, DXIL, and SPIR-V paths, including GVN/SROA miscompilations, minimum-precision vector handling, and validation improvements for SM 6.9 native vectors.
  • Built-in HLSL headers are now embedded in the dxcompiler library (#8445), so users no longer need to copy headers alongside the toolchain.
  • Added -Fre support for the Metal backend to emit Metal Shader Converter reflection JSON (#8159).

More Details

This DX compiler release is also available as a NuGet package Microsoft.Direct3D.DXC.
For an itemized list of changes, fixes, and technical details, see the full release notes:

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