October 2024

• Fixed close-to-zero bug in the implementation of TriangleTests::Intersects
• Renamed implementation namespace from DirectX::Internal to DirectX::MathInternal to avoid some conformance issues with other libraries
• CMake project updates including support for ARM64EC
• Added GitHub Actions YAML files

This version is available on NuGet and via vcpkg.

Windows SDK (10.0.26100)

February 2024 (3.19)

• Fix to address MinGW issue with __cpuid in cpuid.h vs. intrin.h
• Additional updates for clang/LLVM and GNUC
• Minor comment updates

Includes fixes from 3.18b

This version is available on NuGet and via vcpkg.

December 2023

DirectXMath 3.18b release.

• Hot-fix to address -Wunsafe-buffer-usage warnings from clang v16
• Hot-fix to address MinGW issue with __cpuid in cpuid.h vs. intrin.h
• CMake project updates including pkg-config file generation

This version is available on NuGet and via vcpkg.

December 2022

The DirectXMath 3.18 release is included in the Windows SDK (10.0.25262) Preview or later.

• C++20 spaceship operators for XMFLOAT2, XMFLOAT3, etc. when building with /std:c++20 /Zc:_cplusplus
• Improved conformance for ARM64 when using /Zc:arm64-aliased-neon-types-
• Minor code review
• CMake project updated to require 3.20 or later
• Added Azure Dev Ops Pipeline YAML files

This version is available on NuGet and via vcpkg.

May 2022

DirectXMath 3.17 with hot-fixes applied:

• Hot-fix to address -Wreserved-identifier warnings with clang v13
• C++20 spaceship operators for XMFLOAT2, XMFLOAT3, etc. when building with /std:c++20 /Zc:__cplusplus
• Minor CMake project update

This version is available on NuGet and via vcpkg.

Windows SDK (10.0.22621) for Windows 11, Version 22H2

The DirectXMath 3.17 release is included in the Windows SDK (10.0.22621) for Windows 11, Version 22H2 .

• Added ColorsLinear namespace to DirectXColors.h with linear versions of .NET colors
• Optimized the XMMatrixRotationRollPitchYaw(FromVector) functions
• Fixed overread problem for 16bpp GPU types Load functions:
  • XMUNIBBLE4, XMU555, XMU565, XMBYTEN2, XMBYTE2, XMUBYTEN2, XMUBYTE2
• XM_CACHE_LINE_SIZE updated for ARM/ARM64 targets to 128 bytes
• A few comments added to improve IntelliSense experience
• Conformance improvements for GNU compiler
• Minor code cleanup

See this post.

This version is available on NuGet and via vcpkg.

Windows SDK for Windows 11 (10.0.22000)

DirectXMath 3.16 with hot-fixes applied:

• Hot-fixes to resolve build breaks for clang/LLVM and GCC on ARM64
• XM_ALIGNED_DATA and XM_ALIGNED_STRUCT macros updated to use C++17 alignas when available

See this post.

This version is also available on NuGet and via vcpkg.

December 28, 2020

This was a CMake only release of DirectXMath 3.16 for vcpkg to resolve case-sensitivity issues in the CMake package implementation.

Windows 10 SDK (20348), version 2104

DirectXMath 3.16 is included in the Windows 10 SDK (10.0.20348.0), version 2104:

• Added XMVectorLog10 / XMVectorExp10
• Added XMColorRGBToYUV_UHD / XMColorYUVToRGB_UHD for Rec. 2020 YUV
• Added optional rhcoords parameter for BoundingFrustum CreateFromMatrix
• Added use of Intel® Short Vector Matrix Library (SVML) supported by VS 2019
  • Opt-in with _XM_SVML_INTRINSICS_; opt-out with _XM_DISABLE_INTEL_SVML_
• Fixed denorm handling for XMConvertFloatToHalf to match F16C/CVT16 instructions.
• Fixed flush (too small for denorm) handling for XMStoreFloat3PK
• Fixed clamping bug in XMStoreByteN4
• Cleaned up ARM-NEON intrinsics type issues for improved portability on GNUC
• Fixed GXMVECTOR for x86 __vectorcall
• Code review
• Plus all changes from 3.15

See this post.

This version is also available on NuGet.

Windows Insider Preview SDK (20197)

A preview of DirectXMath 3.16 is included in the Windows Insider Preview SDK (20197 and others).