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deps: Update dependency Microsoft.WindowsAppSDK to 2.4.0 - #51

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deps: Update dependency Microsoft.WindowsAppSDK to 2.4.0#51
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This PR contains the following updates:

Package Change Age Confidence
Microsoft.WindowsAppSDK 2.3.12.4.0 age confidence

Release Notes

microsoft/windowsappsdk (Microsoft.WindowsAppSDK)

v2.4.0: Windows App SDK 2.4.0

Windows App SDK 2.4.0

Windows App SDK 2.4.0 is the latest stable release on the 2.x line, adding expanded input support, more precise LanguageModel response statuses, and targeted reliability fixes across input, Storage Pickers, MRT Core, app runtime isolation, composition, and XAML tooling.

What's new in WinAppSDK 2.4.0:
  • Expanded input support. WinUI 3 apps can now use operating system touchpad and mouse haptics through Windows.Devices.Haptics, along with touchpad single-finger panning, when supported by the operating system and hardware.
  • More precise LanguageModel response statuses. The new LanguageModelResponseStatus.UnsupportedLanguage and LanguageModelResponseStatus.LanguageMismatch values let apps distinguish unsupported-language and input/output-language mismatch conditions from generic errors.
Bug fixes:
Bug Fix Runtime Compatibility Change
Fixed a crash that could occur when a touch or pen contact left a scrollable area with precise timing. InputPointerSource_DepartingScrollInputCrashFix
Fixed an issue where the Storage Pickers left the calling WinUI app window without keyboard focus after the file dialog closed. The app now restores its previous focus. See GitHub issue microsoft/WindowsAppSDK#6505. StoragePickers_RestoreFocusAfterDialogCloses
Fixed a regression where MrmGetFilePathFromName returned ERROR_FILE_NOT_FOUND when the PRI file didn't exist instead of returning the documented fallback path. See GitHub issue microsoft/WindowsAppSDK#5940. ResourceManager_RestoreDefaultFallbackPath
Fixed an issue where MICROSOFT_WINDOWSAPPRUNTIME_BASE_DIRECTORY could be inherited by child processes, disrupting MRT Core and catalog lookups. See GitHub issue microsoft/WindowsAppSDK#5987. WindowsAppRuntime_BaseDirectoryIsolation
Fixed a crash when apps using the System Composition Engine called VisualInteractionSource.TryRedirectForManipulation. N/A, operating system composition bridge fix
Fixed the access modifier on the generated C# entry point helper when DISABLE_XAML_GENERATED_MAIN is defined. See GitHub issue microsoft/microsoft-ui-xaml#11245. N/A, build-time tooling change

To see everything that's new and changed, see the full Windows App SDK 2.4.0 release notes.

Try it out
  • Download the 2.4.0 NuGet package to use WinAppSDK 2.4 in your app.
  • Download and update the WinUI Gallery to see the WinUI 3 updates firsthand.
Getting started

To get started using Windows App SDK to develop Windows apps, check out the following documentation:


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@renovate
renovate Bot requested a review from Stensel8 as a code owner August 14, 2026 00:03
@renovate renovate Bot added dependencies dotnet NuGet / .NET SDK changes. winui3 WinUI 3 / Windows App SDK changes. labels Aug 14, 2026
@github-actions github-actions Bot added windows-11 Windows 11 / GUI related. csharp C# source code changes. labels Aug 14, 2026
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csharp C# source code changes. dependencies dotnet NuGet / .NET SDK changes. windows-11 Windows 11 / GUI related. winui3 WinUI 3 / Windows App SDK changes.

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