Add Visual Studio 2026 CMake generator support#26802
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Co-authored-by: fs-eire <7679871+fs-eire@users.noreply.github.com>
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[WIP] Add support for Visual Studio 2026 in build script
Add Visual Studio 2026 CMake generator support
Dec 15, 2025
fs-eire
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Dec 15, 2025
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Jan 20, 2026
### Description Add "Visual Studio 18 2026" to the list of supported CMake generators in the build script, matching the CMake 3.32+ release that added VS 2026 support. **Changes:** - Added `"Visual Studio 18 2026"` to `--cmake_generator` choices in `build_args.py` - Updated fuzz testing generator validation to accept both VS 2022 and VS 2026 **Usage:** ```bash ./build.py --cmake_generator "Visual Studio 18 2026" --build_dir build ``` ### Motivation and Context CMake 3.32+ includes Visual Studio 18 2026 generator support. ONNX Runtime's build script only supported up to Visual Studio 17 2022, blocking users with VS 2026 installations. <!-- START COPILOT CODING AGENT SUFFIX --> <!-- START COPILOT ORIGINAL PROMPT --> <details> <summary>Original prompt</summary> > Recently, Visual Studio 2026 is released and CMake has the support for it: https://cmake.org/cmake/help/latest/generator/Visual%20Studio%2018%202026.html > > However, ONNX Runtime's build script (build.py) does not have the support for it. currently supported cmake generators are: > > ``` > build.py --help > > ... > --cmake_generator {MinGW Makefiles,Ninja,NMake Makefiles,NMake Makefiles JOM,Unix Makefiles,Visual Studio 17 2022,Xcode} > ... > ``` > > Please make a PR to add support for the latest visual studio. </details> <!-- START COPILOT CODING AGENT TIPS --> --- 💬 We'd love your input! Share your thoughts on Copilot coding agent in our [2 minute survey](https://gh.io/copilot-coding-agent-survey). --------- Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: fs-eire <7679871+fs-eire@users.noreply.github.com>
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Description
Add "Visual Studio 18 2026" to the list of supported CMake generators in the build script, matching the CMake 3.32+ release that added VS 2026 support.
Changes:
"Visual Studio 18 2026"to--cmake_generatorchoices inbuild_args.pyUsage:
./build.py --cmake_generator "Visual Studio 18 2026" --build_dir buildMotivation and Context
CMake 3.32+ includes Visual Studio 18 2026 generator support. ONNX Runtime's build script only supported up to Visual Studio 17 2022, blocking users with VS 2026 installations.
Original prompt
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