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Bump Microsoft.WindowsAppSDK from 2.3.1 to 2.5.1 - #8

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Updated Microsoft.WindowsAppSDK from 2.3.1 to 2.5.1.

Release notes

Sourced from Microsoft.WindowsAppSDK's releases.

2.5.1

Windows App SDK 2.5.1 adds Windows Error Reporting support for self-contained .NET MSIX apps, introduces limited-access app content search APIs, and includes reliability fixes across WinUI 3, input, composition, deployment, and Windows AI.

What's new in WinAppSDK 2.5.1:

  • Windows Error Reporting support. Self-contained .NET MSIX apps can now use the windows.diagnosticServiceModule package-manifest extension to declare diagnostic modules, allowing Windows Error Reporting to load them and collect actionable crash dumps.
  • Limited-access AppContentSearch APIs. Apps with a limited-access feature token can use the new AppContentIndex APIs to index text and images, perform lexical queries, and use semantic matching on supported NPU-enabled devices. The APIs support semantic search and retrieval-augmented generation scenarios.

Bug fixes:

Bug Fix Runtime Compatibility Change
Fixed a crash in windowed-popup input handling when a focus or pointer event was processed after the popup's island had been disposed. PointerInputProcessor_ReleaseCaptureOnDisposedIsland
Fixed a crash in NavigationView when resizing the control could produce a negative pane MaxHeight. NavigationView_UpdatePaneLayoutNegativeMaxHeight
Fixed an issue where the property set returned by ElementCompositionPreview.GetPointerPositionPropertySet stopped updating while a pointer was pressed. PointerPositionPropertySet_UpdateWhilePressed
Fixed a crash in NavigationView when an expanded item's flyout was shown after the item had been collapsed or recycled. NavigationViewItem_DeferredFlyoutShowStaleState
Fixed a fail-fast when a KeyboardAccelerator used an OEM or punctuation key and displayed the accelerator shortcut label. KeyboardAccelerator_OemKeyNoFailFast
Fixed a fatal process exit during XAML shutdown in apps hosting WinUI 3 on more than one UI thread. WindowsXamlManager_ActivationFactoryCacheResetRace
Fixed an issue where a CommandBar with no secondary commands could show an empty overflow button at fractional display scales such as 175%. CommandBar_SpuriousOverflowButtonAtFractionalScale
Fixed an issue that prevented apps using the System Composition Engine from calling VisualInteractionSource.CreateFromIVisualElement. CompositionEngine_SwitcherSeptemberFixes
Fixed effect graphs and SceneLighting rendering for apps using the System Composition Engine. CompositionEngine_SwitcherSeptemberFixes
Fixed InputPointerSource.ActivationBehavior not honoring NoActivate when using the System Composition Engine. CompositionEngine_SwitcherSeptemberFixes
Fixed CompositionEngine selection behavior for null inputs and no-op selections. CompositionEngine_SwitcherSeptemberFixes
Fixed cursor customization for lifted input when using the System Composition Engine. CompositionEngine_SwitcherSeptemberFixes
Fixed ICompositionObject queries on gradient stop collections when using the System Composition Engine. N/A, operating system composition fix
Fixed ContentExternalOutputLink border and background behavior when using the System Composition Engine. N/A, operating system composition fix
Fixed access to VisualReferenceController when using the System Composition Engine. N/A, operating system composition fix
Fixed a registration issue that could occur when installing the Windows App SDK. N/A, deployment registration fix
Fixed an issue where Video Super Resolution could fail during initialization or inference with the updated ONNX Runtime dependency. N/A, dependency compatibility update

To see everything that's new and changed, see the full Windows App SDK 2.5.1 release notes.

Try it out

  • Download the 2.5.1 NuGet package to use WinAppSDK 2.5 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:

2.4.1-exp

Windows App SDK 2.4 Experimental (2.4.1-experimental) 🧪

Windows App SDK 2.4 Experimental is the latest experimental release, headlined by inking support for WinUI 3. It follows Windows App SDK 2.4.0 stable and generally brings forward the changes from that release alongside the experimental-only addition below.

What's new in WinAppSDK 2.4 Experimental:

  • Inking support for WinUI 3. The new InkCanvas, InkToolbar, and InkPresenter APIs add pen and touch input, clipboard and high-contrast support, stroke input, and unprocessed input to WinUI 3 apps.

To see everything that's new and changed, see the full Windows App SDK 2.4 Experimental release notes.

Try it out

Getting started

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

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:

2.3.2-expA

Windows App SDK 2.3 Experimental A (2.3.2-experimentalA) 🧪

Windows App SDK 2.3 Experimental A is the latest experimental release, headlined by new DPI-aware window sizing from XAML, a substantial round of App Content Index indexing and reliability improvements, and additional Windows AI and speech APIs. It builds on the Windows App SDK 2.3.1 stable release and adds the experimental-only work described below.

What's new in WinAppSDK 2.3 Experimental A:

  • Window.Width and Window.Height. New properties give apps a DPI-aware way to get and set a window's size in logical (client) pixels directly from code or markup, without reaching through Window.AppWindow and doing manual logical-to-physical DPI conversion. Companion Window.MinWidth, Window.MinHeight, Window.MaxWidth, and Window.MaxHeight properties constrain the window's size.
  • App Content Index improvements. The experimental App Content Index APIs add faster batch indexing via AppContentIndexer.BatchAddOrUpdate, direct indexing of bitmap and image-stream content (with OCR and semantic options), static ranking boosts for individual content items or regions, ICU-based multilingual tokenization, and automatic recovery from index corruption. Indexing and query paths are also substantially faster, with more stable lexical ranking.
  • Structured JSON generation. A new LanguageModel.GenerateStructuredJsonResponseAsync API lets apps generate structured JSON output from the on-device language model, making it easier to get typed, machine-readable results back from a prompt.
  • Speech recognition cleanup. The experimental SpeechAudioProvider now implements IClosable, so apps can deterministically release the provider with Close/Dispose when they finish streaming audio.

To see everything that's new and changed, see the full Windows App SDK 2.3 Experimental A release notes.

Try it out

Getting started

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

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---
updated-dependencies:
- dependency-name: Microsoft.WindowsAppSDK
  dependency-version: 2.5.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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@dependabot dependabot Bot added .NET Pull requests that update .NET code dependencies Pull requests that update a dependency file labels Sep 23, 2026
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