Windows App SDK 1.7 release notes

You can choose between the Stable, Preview, and Experimental channels depending on your development needs — from reliable production builds to early access to upcoming features. Learn more about Release channels.

For the updated runtime and MSIX, see Downloads for the Windows App SDK.

Version 1.7.9 (1.7.260224002)

Released: March 10, 2026

Bug fixes

Fixed a pointer arithmetic issue in the app-instance activation-redirection shared-memory queue that could cause incorrect behavior when using AppInstance.RedirectActivationTo. (RuntimeCompatibilityChange: AppLifecycle_SharedMemoryRedirectionQueueFix)

Fixed an issue in the deployment manager where activity data was being incorrectly reset during package installation and license operations. (RuntimeCompatibilityChange: DeploymentManager_ActivityCollectionFix)

Version 1.7.8 (1.7.260208005)

Released: February 10, 2026

Bug fixes

Fixed a package downgrade init failure and added 1.7.8 runtime support—ensuring reliable deployment and correct app recognition across configurations. (RuntimeCompatibilityChange: DeploymentManager_PackageDowngradeFix).

Version 1.7.7 (1.7.260114001)

Released: January 13, 2026

Bug fixes

Fixed an issue that prevented Image Super Resolution from being available for some applications. (RuntimeCompatibilityChange: N/A)

Version 1.7.6 (1.7.251107005)

Released: November 11, 2025

Bug fixes

Fixed a potential crash if OrientedVirtualizingPanel hits an overflow when computing bounds. (RuntimeCompatibilityChange: OrientedVirtualizingPanel_FixBoundsOverflow).

Fixed a potential crash on app launch if the computer has not been rebooted in a long time. (RuntimeCompatibilityChange: ContentIsland_StartupCrashWhenLongRunning).

Windows AI Object Erase

Object Erase can be used to remove objects from images. The model takes both an image and a greyscale mask indicating the object to be removed, erases the masked area from the image, and replaces the erased area with the image background.

New APIs for 1.7.6

This release includes the following new APIs compared to the 1.7.5 release:
Microsoft.Windows.AI.Imaging

    ImageObjectRemover
    ImageObjectRemoverContract

Version 1.7.5 (1.7.251014001)

Bug fixes

Fixed issue where mouse wheel scrolling doesn't work when the Windows setting "Scroll inactive windows when hovering over them" is off. For more info, see GitHub issue #10091. (RuntimeCompatibilityChange: InputPointerSource_FixScrollForInactiveWindowSetting)

Fixed an issue that caused a false positive warning about a missing mspdbcmf.exe. For more info, see GitHub issue #5262. (RuntimeCompatibilityChange: N/A, build .targets change)

Version 1.7.4 (1.7.250909003)

Bug fixes

Fixed an issue where the hover effects of other windows for the app could flicker when at least one window had ExtendsContentIntoTitleBar set to true. (RuntimeCompatibilityChange: XamlIsland_ExitNonClientArea). For more information, see GitHub issue #10572.

Fixed an issue where UnhandledExceptions were not being propagated to managed code. (RuntimeCompatibilityChange: DispatcherQueue_PropagateException). For more information, see GitHub issue #10447.

Fixed an occasional crash in DirectUI::PointerRoutedEventArgs::GetCurrentPointImpl. (RuntimeCompatibilityChange: GetIntermediatePointsImpl_Crash)

Apps with an incorrect activation manifest no longer crash in certain situations but instead return an error. (RuntimeCompatibilityChange: DesktopSiteBridge_ActivationErrorCrash)

Fixed an issue where setting NavigationView.SelectedItem as null did not correctly clear the selection state in collapsed mode. (RuntimeCompatibilityChange: NavigationView_ClearSelectedItem)

Fixed certain corrupted upgrade scenarios from 1.6 to 1.7 by ensuring version numbers on certain binaries are consistently increasing. (RuntimeCompatibilityChange: N/A, file version change)

Fixed an issue where resizing the window would fire an AppWindow.Changed event with AppWindowChangedEventArgs.DidPresenterChange set to true. (RuntimeCompatibilityChange: AppWindow_NoDidPresenterChangeOnRestore)

Fixed a potential crash on window close if an InputPointerSource is disposed during certain reentrant scenarios. (RuntimeCompatibilityChange: InputPointerSource_ReentrantDisposedCrash)

Fixed an issue where the installer failed to update the Singleton package if an older version was running in the background. The fix ensures AddPackage is always called with ForceTargetAppShutdown for the Singleton and restarts the NotificationLongRunningPlatform to complete the update. (RuntimeCompatibilityChange: N/A, installer change)

Version 1.7.3 (1.7.250606001)

Windows AI APIs

Important

The underlying ML models required for these APIs currently require your device to be running the latest Windows 11 Insider Preview Build on the Dev Channel. Additionally, these APIs require your device to be a Copilot+ PC. See Copilot+ PCs Developer Guide to learn more about these devices. APIs will throw an exception when called on devices lacking the necessary support.

The Windows App SDK now includes a suite of artificial intelligence (AI) APIs that can be used with a local language model to perform a variety of tasks on Copilot+ PCs. Your apps can now intelligently respond to prompts, recognize text within images, describe the content of images, remove objects from images, and more.

For information on responsible development practices utilized during the creation of the Windows AI APIs, which can also be applied when creating AI-assisted features, consult the Developing Responsible Generative AI Applications and Features on Windows guidance.

New Rank property for Widgets

Added a new Rank property to Widgets. Rank may be used by the platform's recommendation engine to sort Widgets from a same application package identity. Should multiple widgets from the same provider be recommended for a UI surface, the Rank property will determine the order in which they appear. The Rank property does not change how a Widget is placed compared to other provider's Widgets, nor does it affect the chance a Widget will be recommended.

Bug fixes

Added the following sentence to section 1a of the .nupkg license: When building Generative AI applications follow the guidelines in Developing Responsible Generative AI Applications and Features on Windows.

Fixed a potential crash in ApplicationDataProvider::GetStateFolderUris caused by reentrancy. For more info, see GitHub issue #10513. (RuntimeCompatibilityChange: ApplicationDataProvider_ReentrancyProtection)

Fixed a potential crash in WindowChrome::SetTitleBar when closing a window. For more info, see GitHub issue #9203. (RuntimeCompatibilityChange: WindowChrome_SetTitleBarCrash)

Fixed a potential crash in PointerInputObserverWinRT::FlushCoalescedInput_Callback when there is reentrancy while processing input. (RuntimeCompatibilityChange: InputPointerSource_FlushReentrancyCrash)

New APIs for 1.7.3

This release includes the following new APIs compared to the previous 1.7 release:
Microsoft.Windows.Widgets.Providers

    WidgetInfo
        Rank

    WidgetUpdateRequestOptions
        Rank

Version 1.7.2 (1.7.250513003)

Windows AI APIs

Important

Phi Silica Text Intelligence

With Phi Silica, Microsoft's most powerful NPU-tuned local language model, you can specify it to perform common tasks like summarizing a piece of text, rewriting a piece of text for clarity, and converting text to a table format. Phi Silica is optimized for efficiency and performance on Windows Copilot+ PCs devices while still offering many of the capabilities found in Large Language Models (LLMs).

See Get started with Phi Silica in the Windows App SDK and API ref for Phi Silica in the Windows App SDK for more information.

Image Description

The Image Description APIs enable the generation of textual descriptions of images. The length and type of these descriptions can be configured to meet accessibility requirements, ranging from short captions to long descriptions.

For additional details, see What can I do with Image Description? and API ref for AI imaging features in the Windows App SDK.

Text Recognition

Text recognition, also known as optical character recognition (OCR), detects and extracts text within images, converting it into machine-readable character streams. These APIs identify characters, words, lines, polygonal text boundaries, and provide confidence levels for each match. Benefiting from NPU-assisted acceleration, the Windows AI AI-assisted APIs perform faster and more accurately than the legacy Windows.Media.Ocr.OcrEngine APIs.

For additional details, see Get Started with Text Recognition (OCR) in the Windows App SDK and API ref for AI-backed Text Recognition (OCR) in the Windows App SDK.

Image Super Resolution

The 'ImageScaler' APIs can increase the sharpness and clarity of an image and upscale the image by up to 8x its original resolution.

For additional details, see What can I do with Image Super Resolution? and API ref for AI imaging features in the Windows App SDK.

Image Segmentation

The Image Segmentation APIs allow for the identification of specific objects within an image. By inputting an image and a "hints" object, the model returns a mask of the identified object.

For additional details, see What can I do with Image Segmentation? and API ref for AI imaging features in the Windows App SDK.

ApplicationData.MachinePath folder creation support

ApplicationData.MachineFolder is now easier to use on Windows >=10.0.26100.0 (Ge). Windows will create the Machine folder when a package manifesting opt-in support is added to a system if Windows App SDK 1.7.2 is present on the system. For more details see the ApplicationData spec.

Bugfixes

Fixed PackageDeploymentManager telemetry to properly capture completion status. For more info, see GitHub issue #5296. (RuntimeCompatibilityChange: N/A)

Fixed a crash when using pen input on an x86 app. (RuntimeCompatibilityChange: InputStateManager_PenInputCrashX86)

Fixed a potential crash if the window is already destroyed when WinUI is attempting to initialize for scrolling. (RuntimeCompatibilityChange: ActivateDirectManipulationManager_CheckCanInit)

Fixed the WINDOWSAPPSDK_RELEASE_PATCH define and Microsoft::WindowsAppSDK::Release::Patch values in WindowsAppSDK-VersionInfo.h to not always be 0. The define is now the yymmdd date of the build, and the Patch value is the mmdd date. This change provides better runtime information on the version being used without changing any variable sizes or the version scheme. (RuntimeCompatibilityChange: N/A, header change)

Fixed a potential issue in the Bootstrapper if it is used to load a 1.6 or earlier version of Windows App SDK. For more info, see GitHub issue #5349. (RuntimeCompatibilityChange: N/A)

Fixed an issue where using MSBuild to build a single-project app could incorrectly fail with a build error if it didn't have a correct launchSettings.json. (RuntimeCompatibilityChange: N/A, build .targets change)

Improved the performance of rendering the first frame on application launch. (RuntimeCompatibilityChange: DwmCoreI_OptimizeFirstFrameLatency)

New APIs for 1.7.2

This release includes the following new APIs compared to the previous 1.7 release:

Microsoft.Graphics.Imaging

    ImageBuffer
    ImageBufferContract
    ImageBufferPixelFormat

Microsoft.Windows.AI

    AIFeatureReadyContract
    AIFeatureReadyResult
    AIFeatureReadyResultState
    AIFeatureReadyState

Microsoft.Windows.AI.ContentSafety

    ContentFilterOptions
    ContentSafetyContract
    ImageContentFilterSeverity
    SeverityLevel
    TextContentFilterSeverity

Microsoft.Windows.AI.Imaging

    ImageDescriptionContract
    ImageDescriptionGenerator
    ImageDescriptionKind
    ImageDescriptionResult
    ImageDescriptionResultStatus
    ImageObjectExtractor
    ImageObjectExtractorContract
    ImageObjectExtractorHint
    ImageScaler
    ImageScalerContract
    RecognizedLine
    RecognizedLineStyle
    RecognizedText
    RecognizedTextBoundingBox
    RecognizedWord
    TextRecognitionContract
    TextRecognizer

Microsoft.Windows.AI.Text

    LanguageModel
    LanguageModelContext
    LanguageModelContract
    LanguageModelOptions
    LanguageModelResponseResult
    LanguageModelResponseStatus
    TextIntelligenceContract
    TextRewriter
    TextSummarizer
    TextToTableConverter
    TextToTableResponseResult
    TextToTableRow

Microsoft.Windows.Workloads

    WorkloadPriority
    WorkloadsContract

Version 1.7.1 (1.7.250401001)

Bugfixes

Improved the telemetry for failure scenarios in WindowsAppRuntimeInstall-<arch>.exe. For more info, see GitHub issue #5289. (RuntimeCompatibilityChange: N/A, installer change).

Fixed an issue where pointer input would stop working when using arrow keys at the same time. For more info, see GitHub issue #10126. (RuntimeCompatibilityChange: FixStuckPointerInputQueue).

Fixed an issue where apps in remote desktop stop responding to pointer input. For more info, see GitHub issue #10009. (This is the same fix as the pointer input plus arrow keys fix, due to remote desktop automatically sending some key input during the switch away and back.) (RuntimeCompatibilityChange: FixStuckPointerInputQueue).

Fixed a potential crash trying to restore focus if a window activation event is delivered for a window which is closing. (RuntimeCompatibilityChange: FixWindowCloseFocusCrash)

Fixed a performance regression introduced in Windows App SDK 1.6 due to WinUI binaries missing some linker optimizations. (RuntimeCompatibilityChange: N/A, changed linker options)

Fixed a potential crash if ProgressBar::SetProgressBarIndicatorWidth is called on a ProgressBar which is not in the tree. (RuntimeCompatibilityChange: FixSetProgressBarIndicatorWidthCrash)

Fixed a potential crash caused by CPopup::EnsureBridgeClosed sometimes triggering reentrancy. (RuntimeCompatibilityChange: FixPopupClosingReentrancyCrash)

Fixed a potential crash when closing a popup due to CUIElement::FlushPendingKeepVisibleOperations using a null children collection. (RuntimeCompatibilityChange: FixPopupUnloadingCrash)

Fixed PackageDeploymentManager.EnsurePackage*Ready to ensure version supersedence. For more info, see GitHub issue #5191. (RuntimeCompatibilityChange: EnsurePackageReadyVersionSupercedence)

Fixed a potential crash caused by WebView2::UpdateCoreWebViewVisibility sometimes triggering reentrancy. For more info, see GitHub issue #10305. (RuntimeCompatibilityChange: FixWebViewVisibilityReentrancyCrash)

Fixed an issue where app UI sometimes permanently freezes and can stop rendering due to the DispatcherQueue getting stuck. (RuntimeCompatibilityChange: FixRandomUIFreezeInDispatcher)

Version 1.7.0 (1.7.250310001)

New Badge Notifications

The notification badge conveys a summary or status information specific to an app. This can be numeric (1-99) or a glyph from one of the system-provided glyphs. This new functionality provides an easy way for apps to show status, such as number of unread mails in a mail app or number of new posts in a social media app.

For more info, see GitHub #4926.

New CameraCaptureUI API

Developers have encountered challenges in the desktop environments due to WinRT CameraCaptureUI being dependent on CoreWindows, and lack of InitializeWithWindow support. The team has released this new Microsoft.Windows.Media.Capture.CameraCaptureUI API to Windows App SDK to provide a streamlined solution with feature parity, now supporting WindowID in the constructor for enhanced desktop compatibility.

For more info, see GitHub issue #4721.

New Authentication API

A new OAuth2Manager API provides a streamlined solution for web authentication, offering OAuth 2.0 capabilities with full feature parity across all Windows platforms supported by Windows App SDK. This new Authentication Manager is different from the public WebAuthentication Broker API, as it better aligns with OAuth best practices.

For more info, see GitHub issue #4772.

New Background Task support

Background tasks are app components that run in the background without a user interface, performing actions like download files, syncing data, sending notifications or updating files. The new BackgroundTaskBuilder API provides Windows App SDK dependent apps the ability to directly register the full trust COM components with background tasks, removing the need to implement a workaround.

For more info, see GitHub #4831.

New TitleBar control

A new TitleBar control makes it much easier to create a great, customizable titlebar for your app. Configure properties such as the titlebar icon, Title, and Subtitle, include an integrated back button, or even add a custom control like a search box! The control includes robust titlebar capabilities like empty-space draggable regions, theme responsiveness, caption buttons, and built-in accessibility support so you can focus on your personalized design and still get the same reliable titlebar as the default experience.

For more info, see GitHub #10056.

Support for MathML

RichEditBox now supports MathML, via RichEditTextDocument.SetMathMode and RichEditTextDocument.SetMathML.

For more info, see GitHub #4196.

Enhanced runtime

Windows App SDK's Dynamic Dependencies APIs delegate all calls to Windows 11's implementation when running on >= Windows 11 24H2 (10.0.26100.0) providing improved performance and robustness. This holds true for all C/C++ (Mdd*()) and WinRT (namespace Microsoft.Windows.ApplicationModel.DynamicDependency) APIs.

Packaged processes calling Windows App SDK's Dynamic Dependencies APIs is now supported on >= Windows 11 24H2 (10.0.26100.0). This is still unsupported on older systems (the Windows App SDK implementation doesn't support packaged apps).

This has no impact to the developer experience. Callers can continue using the Bootstrapper API to add the Windows App SDK framework package to the calling process' package graph.

For more info, see GitHub PR #4949.

Undocked Registration-free WinRT (URFW) is not enabled on >= Windows 11 24H2 (10.0.26100.0). The OS' implementation handles all Registration-free WinRT activity on these systems providing improved performance and robustness. For more info, see GitHub PR #4949.

Detours is not used on >= Windows 11 24H2 (10.0.26100.0). Detours was only used by Windows App SDK's implementations of Dynamic Dependencies and Registration-free WinRT, but as those features are now handled by the OS' implementations there's no need for them to initialize or otherwise wire up Detours. This provides a small performance gain when loading Microsoft.WindowsAppRuntime.dll. For more info, see GitHub PR #4949.

New AppWindow APIs

New AppWindow APIs make it easier to control your app windows to create a great experience. New capabilities include using SetTaskBarIcon and SetTitleBarIcon to independently set the taskbar and titlebar icons, using AppWindowTitleBar.PreferredTheme to set the light/dark theme of the titlebar, and using new properties like OverlappedPresenter.PreferredMinimumWidth and OverlappedPresenter.PreferredMaximumHeight to set a minimum or maximum width or height for the window.

New Island APIs

The updates in the Microsoft.UI.Content namespace introduce several significant enhancements and new features aimed at improving the functionality and interoperability of the ContentIsland APIs. These changes are designed to support new hosting scenarios, enhance rendering capabilities, and ensure better synchronization of input and accessibility states. Key updates include:

New primitives for hosting ContentIslands:

DesktopPopupSiteBridge: Enables hosting a ContentIsland in the environment of a Win32 window with WS_POPUP style, facilitating scenarios where applications use popup windows for dialog boxes and message boxes.

ChildSiteLink: Allows a parent ContentIsland to host a nested child ContentIsland, providing a seamless partitioning of the rendering surface without user experience seams.

DesktopAttachedSiteBridge: Attaches to an existing Win32 window instead of creating a new one, designed to host a ContentIsland with Windows.UI.Composition.Visuals at the root of the Win32 window hierarchy, ensuring full control over Win32-based input processing and accessibility.

Enhanced rendering and input synchronization:

The LocalToParentTransformMatrix and ActualSize properties of a ChildSiteLink are updated relative to the parent ContentIsland before rendering, avoiding latency and ensuring synchronized input and accessibility states.

ContentIslands with Windows.UI.Composition.Visuals:

ContentIsland can use Windows.UI.Composition.Visuals for rendering and Win32 window APIs for input processing, enabling interoperability with applications that use legacy UX frameworks. This allows for a gradual adoption of newer UX frameworks layered on top of the Windows App SDK Scene Graph, such as WinUI and React Native for Windows on Fabric. These updates collectively enhance the flexibility, performance, and interoperability of the ContentIsland APIs, enabling developers to create more sophisticated and responsive applications.

Additionally, the updates in the Microsoft.UI.Xaml namespace introduce a new XamlIsland API, which allows for the hosting of Xaml content within a SiteBridge or a ChildSiteLink. The XamlIsland offers greater flexibility compared to the DesktopWindowXamlSource API. While DesktopWindowXamlSource requires hosting within an existing Win32 window, the XamlIsland exposes a ContentIsland, enabling more options for hosting Xaml content.

Other notable changes

New RuntimeCompatibilityOptions support will allow more control over how servicing changes affect apps. For more info, see GitHub #4966.

A new ReleaseInfo API provides easy access to the version of the Windows App SDK Runtime in use. For more info, see GitHub #2893.

Note: Windows AI APIs are not included this release. To experiment with these APIs, please continue to use the 1.7-experimental3 release and share your feedback!

New APIs for 1.7.0

This release includes the following new APIs compared to the stable 1.6 release:

Microsoft.Security.Authentication.OAuth

    AuthFailure
    AuthRequestParams
    AuthRequestResult
    AuthResponse
    ClientAuthentication
    CodeChallengeMethodKind
    OAuth2Manager
    TokenFailure
    TokenFailureKind
    TokenRequestParams
    TokenRequestResult
    TokenResponse

Microsoft.UI.Content

    ChildSiteLink
    ContentAutomationOptions
    ContentEnvironmentStateChangedEventArgs
        DidDisplayScaleChange

   ContentIsland
        AutomationOption
        Children
        CreateForSystemVisual
        FindAllForSystemCompositor
       FragmentRootAutomationProvider
        GetBySystemVisual
        LocalToClientTransformMatrix
        LocalToParentTransformMatrix
        NextSiblingAutomationProvider
        ParentAutomationProvider
        Popups
        PreviousSiblingAutomationProvider
        ProcessesKeyboardInput
        ProcessesPointerInput

    ContentIslandEnvironment
        DisplayScale

    ContentIslandStateChangedEventArgs
        DidLocalToClientTransformMatrixChange
        DidLocalToParentTransformMatrixChange

    ContentSite
        LocalToClientTransformMatrix
        LocalToParentTransformMatrix
        ProcessesKeyboardInput
        ProcessesPointerInput

    ContentSiteAutomationProviderRequestedEventArgs
    ContentSiteEnvironment
        DisplayScale

    ContentSiteEnvironmentView
        DisplayScale

    ContentSiteView
        AutomationOption
        LocalToClientTransformMatrix
        LocalToParentTransformMatrix
        ProcessesKeyboardInput
        ProcessesPointerInput

    DesktopAttachedSiteBridge
    DesktopChildSiteBridge
        CreateWithDispatcherQueue

    DesktopPopupSiteBridge
    IContentSiteAutomation
    IContentSiteInput
    IContentSiteLink

Microsoft.UI.Input

    InputFocusNavigationHost
        GetForSiteLink

Microsoft.UI.Text

    RichEditTextDocument
        GetMathML
        GetMathMode
        SetMathML
        SetMathMode

Microsoft.UI.Windowing

    AppWindow
        SetTaskbarIcon
        SetTitleBarIcon

    AppWindowTitleBar
        PreferredTheme

    OverlappedPresenter
        PreferredMaximumHeight
        PreferredMaximumWidth
        PreferredMinimumHeight
        PreferredMinimumWidth

    TitleBarTheme

Microsoft.UI.Xaml

    XamlIsland
    XamlRoot
        ContentIsland

Microsoft.UI.Xaml.Controls

    TitleBar
    TitleBarAutomationPeer
    TitleBarTemplateSettings

Microsoft.Windows.ApplicationModel.Background

    BackgroundTaskBuilder

Microsoft.Windows.ApplicationModel.Background.UniversalBGTask

    Task

Microsoft.Windows.ApplicationModel.WindowsAppRuntime

    ReleaseInfo
    RuntimeCompatibilityChange
    RuntimeCompatibilityOptions
    RuntimeInfo
    WindowsAppRuntimeVersion

Microsoft.Windows.BadgeNotifications

    BadgeNotificationGlyph
    BadgeNotificationManager

Microsoft.Windows.Media.Capture

    CameraCaptureUI
    CameraCaptureUIMaxPhotoResolution
    CameraCaptureUIMaxVideoResolution
    CameraCaptureUIMode
    CameraCaptureUIPhotoCaptureSettings
    CameraCaptureUIPhotoFormat
    CameraCaptureUIVideoCaptureSettings
    CameraCaptureUIVideoFormat

Bug fixes

Changed SplitButton so touch input now matches the behavior of mouse input. For more info, see GitHub issue #178.

Changed cascading menus so sub menus now open immediately if clicked. For more info, see GitHub issue #939.

Fixed an issue where opening a ComboBox which is in a flyout closes all flyouts. For more info, see GitHub issue #1467.

Fixed an issue where SwipeControl would randomly crash in a ListView. For more info, see GitHub issue #2527.

Fixed an issue where drag-and-drop only a ListViewItem would leave it in the wrong visual state. For more info, see GitHub issue #3458.

Fixed an issue in StackLayout so that it respects the ItemsRepeater.HorizontalAlignment and ItemsRepeater.VerticalAlignment properties (when StackLayout.Orientation is Vertical and Horizontal respectively). The old layout behaved as if the ItemsRepeater alignment was Stretch. With the fix, the layout results in items aligned to the right when the Right alignment is used, for example. For more info, see GitHub issue #3842.

Fixed a potential crash when using a resource which contains an x:Bind. For more info, see GitHub issue #5786.

Fixed an issue where deleting items in the ItemsRepeater's source would not generate items which moved up into view. For more info, see GitHub issue #6661.

Fixed an issue where the right Alt key would not show keytips for Access Keys. For more info, see GitHub issue #8447. Note: This may result in key events for the right Alt key no longer being delivered to handles in the app or controls.

Fixed an issue where using a ResourceDictionary containing only a single resource would fail to find that resource and likely cause a crash. For more info, see GitHub issue #8832.

Fixed a crash where UniformGridLayout would sometimes pick a wrong layout anchor and cause infinite layout passes when scrolling backwards. For more info, see GitHub issue #9199.

Fixed an issue where setting NavigationFailedEventArgs.Handled to True would still throw an exception. For more info, see GitHub issue #9632.

Fixed an issue where TabView would not apply any specified CornerRadius. For more info, see GitHub issue #9846.

Fixed a potential layout cycle crash in StackLayout. For more info, see GitHub issue #9852.

Fixed a potential crash in ItemsView when removing items. For more info, see GitHub issue #9868.

Fixed an issue in 1.7-preview1 where popups no longer correctly moved with their parent window. For more info, see GitHub issue #10386.

Based on feedback from 1.7-preview1, renamed some properties on the new TitleBar control.

Version 1.7 Preview 1 (1.7-preview1)

New Badge Notifications Feature

New badge notification support allows showing a number or glyph badge on your app in the taskbar. For more info, see GitHub #4926.

New CameraCaptureUI API

A new CameraCaptureUI API makes it easier to capture photos and videos in your Windows App SDK app. For more info, see GitHub issue #4721.

New Authentication API

A new OAuth2Manager API provides a streamlined solution for web authentication, offering OAuth 2.0 capabilities with full feature parity across all Windows platforms supported by Windows App SDK. For more info, see GitHub issue #4772.

New Background Task support

A new BackgroundTaskBuilder API enables registering background tasks for Windows App SDK apps. For more info, see GitHub #4831.

New TitleBar control

A new TitleBar control makes it much easier to create a great, customizable titlebar for your app. Configure properties such as the titlebar icon, Title, and Subtitle, include an integrated back button, or even add a custom control like a search box! The control includes robust titlebar capabilities like empty-space draggable regions, theme responsiveness, caption buttons, and built-in accessibility support so you can focus on your personalized design and still get the same reliable titlebar as the default experience. For more info, see GitHub #10056.

Support for MathML

RichEditBox now supports MathML, via RichEditTextDocument.SetMathMode and RichEditTextDocument.SetMathML. For more info, see GitHub #4196.

Other notable changes

New RuntimeCompatibilityOptions support will allow more control over how servicing changes affect apps. For more info, see GitHub #4966.

A new ReleaseInfo API provides easy access to the version of the Windows App SDK Runtime in use. For more info, see GitHub #2893.

Note: Windows Copilot Runtime APIs are not included this release. To experiment with these APIs, please continue to use the 1.7-experimental3 release and share your feedback!

Note: New APIs for windowing on AppWindow are not included in this release. To experiment with these APIs, please continue to use the 1.7-experimental3 release and share your feedback!

New APIs

This release includes the following new APIs compared to the stable 1.6 release:

Microsoft.Security.Authentication.OAuth

    AuthFailure
    AuthRequestParams
    AuthRequestResult
    AuthResponse
    ClientAuthentication
    CodeChallengeMethodKind
    OAuth2Manager
    OAuthContract
    TokenFailure
    TokenFailureKind
    TokenRequestParams
    TokenRequestResult
    TokenResponse

Microsoft.UI.Text

    RichEditTextDocument
        GetMathML
        GetMathMode
        SetMathML
        SetMathMode

    TextApiContract

Microsoft.UI.Xaml

    XamlIsland
    XamlRoot
        ContentIsland

Microsoft.UI.Xaml.Controls

    TitleBar
    TitleBarAutomationPeer
    TitleBarTemplateSettings

Microsoft.Windows.ApplicationModel.Background

    BackgroundTaskBuilder
    BackgroundTaskContract

Microsoft.Windows.ApplicationModel.Background.UniversalBGTask

    Task
    UniversalBackgroundTaskContract

Microsoft.Windows.ApplicationModel.WindowsAppRuntime

    ReleaseInfo
    RuntimeCompatibilityChange
    RuntimeCompatibilityContract
    RuntimeCompatibilityOptions
    RuntimeInfo
    VersionInfoContract
    WindowsAppRuntimeVersion

Microsoft.Windows.BadgeNotifications

    BadgeNotificationGlyph
    BadgeNotificationManager
    BadgeNotificationsContract

Microsoft.Windows.Media.Capture

    CameraCaptureUI
    CameraCaptureUIContract
    CameraCaptureUIMaxPhotoResolution
    CameraCaptureUIMaxVideoResolution
    CameraCaptureUIMode
    CameraCaptureUIPhotoCaptureSettings
    CameraCaptureUIPhotoFormat
    CameraCaptureUIVideoCaptureSettings
    CameraCaptureUIVideoFormat

Bug fixes

This release includes the following bug fixes:

Changed SplitButton so touch input now matches the behavior of mouse input. For more info, see GitHub issue #178.

Changed cascading menus so sub menus now open immediately if clicked. For more info, see GitHub issue #939.

Fixed an issue where opening a ComboBox which is in a flyout closes all flyouts. For more info, see GitHub issue #1467.

Fixed an issue where SwipeControl would randomly crash in a ListView. For more info, see GitHub issue #2527.

Fixed an issue where drag-and-drop only a ListViewItem would leave it in the wrong visual state. For more info, see GitHub issue #3458.

Fixed an issue in StackLayout so that it respects the ItemsRepeater.HorizontalAlignment and ItemsRepeater.VerticalAlignment properties (when StackLayout.Orientation is Vertical and Horizontal respectively). The old layout behaved as if the ItemsRepeater alignment was Stretch. With the fix, the layout results in items aligned to the right when the Right alignment is used, for example. For more info, see GitHub issue #3842.

Fixed an issue where deleting items in the ItemsRepeater's source would not generate items which moved up into view. For more info, see GitHub issue #6661.

Fixed an issue where the right Alt key would not show keytips for Access Keys. For more info, see GitHub issue #8447. Note: This may result in key events for the right Alt key no longer being delivered to handles in the app or controls.

Fixed a crash where UniformGridLayout would sometimes pick a wrong layout anchor and cause infinite layout passes when scrolling backwards. For more info, see GitHub issue #9199.

Fixed an issue where setting NavigationFailedEventArgs.Handled to True would still throw an exception. For more info, see GitHub issue #9632.

Fixed an issue where TabView would not apply any specified CornerRadius. For more info, see GitHub issue #9846.

Fixed a potential layout cycle crash in StackLayout. For more info, see GitHub issue #9852.

Fixed a potential crash in ItemsView when removing items. For more info, see GitHub issue #9868.

Version 1.7 Experimental (1.7.0-experimental3)

Use on-device AI with Windows AI APIs

Important

Windows AI Foundry offers several AI-powered features and APIs for you to easily, efficiently, and responsibly use on-device AI models in your Windows apps. In this release we are making available several scenario focused APIs for you to leverage powerful capabilities without the need to find, run, or optimize your own Machine Learning (ML) models.

Learn more about responsible development practices used during Windows AI APIs development that you can also apply as you create AI-assisted features in the Developing Responsible Generative AI Applications and Features on Windows guidance.

Phi Silica

With Phi Silica, Microsoft's most powerful NPU-tuned local language model, you can generate text responses to broad user prompts with built in content moderation. You can also specify it to perform common tasks like summarizing a piece of text, rewriting a piece of text for clarity, and converting text to a table format. Phi Silica is optimized for efficiency and performance on Windows Copilot+ PCs devices while still offering many of the capabilities found in Large Language Models (LLMs).

See Get started with Phi Silica in the Windows App SDK and API ref for Phi Silica in the Windows App SDK for more information.

Text Recognition (OCR)

Text recognition, also known as optical character recognition (OCR), APIs in Windows AI Foundry can detect and extract text within images and convert it into machine readable character streams. These APIs can identify characters, words, lines, polygonal text boundaries, and provide confidence levels for each match. The set of AI-assisted APIs in Windows AI Foundry benefit from NPU-assisted acceleration to perform faster and more accurately than the legacy Windows.Media.Ocr.OcrEngine APIs.

See Get Started with Text Recognition (OCR) in the Windows App SDK and API ref for AI-backed Text Recognition (OCR) in the Windows App SDK for more information.

Image Super Resolution

Using the 'ImageScaler' APIs you can increase the sharpness and clarity of an image and upscale the image up to 8x its original resolution.

See What can I do with Image Super Resolution? and API ref for AI imaging features in the Windows App SDK to get started.

Image Description

The Image Description APIs can be used to generate a text description of an image. The APIs are configurable to specify the length and type of the text description. Image descriptions may include a short caption or a long description for users with accessibility needs.

Note

When calling ImageDescriptionGenerator.DescribeAsync() in a Debug build, an error may occur that can be mitigated by continuing the build in Visual Studio.

See What can I do with Image Description? and API ref for AI imaging features in the Windows App SDK to learn more.

Image Segmentation

Using Image Segmentation APIs you can identify specific objects within an image. The model takes both an image and a "hints" object and returns a mask of the identified object.

See What can I do with Image Segmentation? and API ref for AI imaging features in the Windows App SDK to get started.

New APIs for Windowing

New AppWindow APIs make it easier to control your app windows and create a great experience. New capabilities include using EnablePlacementPersistence to automatically remember the size and position of your windows, using SetTaskBarIcon and SetTitleBarIcon to independently set the taskbar and titlebar icons, using AppWindowTitleBar.PreferredTheme to set the light/dark theme of the titlebar, and using OverlappedPresenter.PreferredMinimum/MaximumSize to set a minimum or maximum size for the window.

Other notable changes

The missing C# projections for the new BadgeNotifications have been added so these APIs are now usable from C#.

A class registration issue which prevented using the new AppNotificationConferencingConfig API has been fixed. Note that this enhanced user experience for video or audio calling in notifications is only available on the latest Windows Insider releases of Windows.

New APIs

This release includes the following new and modified experimental APIs compared to 1.7-experimental2:

Microsoft.Graphics.Imaging

    ImageBuffer
    ImageBufferContract
    ImageObjectExtractor
    ImageObjectExtractorContract
    ImageObjectExtractorHint
    ImageScaler
    ImageScalerContract
    PixelFormat

Microsoft.UI.Content

    ChildSiteLink
        AutomationOption
        ProcessKeyboardInput
        ProcessPointerInput

    ContentAutomationOptions
    ContentIsland
        AutomationOption
        ProcessKeyboardInput
        ProcessPointerInput

    ContentSite
        ProcessKeyboardInput
        ProcessPointerInput

    ContentSiteView
        AutomationOption
        ProcessKeyboardInput
        ProcessPointerInput

    DesktopPopupSiteBridge
        AutomationOption

    IContentSiteAutomation
        AutomationOption

    IContentSiteInput
    ReadOnlyDesktopSiteBridge
        ProcessKeyboardInput
        ProcessPointerInput

Microsoft.UI.Windowing

    AppWindow
        EnablePlacementPersistence
        EnablePlacementPersistence
        GetCurrentPlacement
        SaveCurrentPlacement
        SetPlacement
        SetTaskBarIcon
        SetTaskBarIcon
        SetTitleBarIcon
        SetTitleBarIcon

    AppWindowTitleBar
        PreferredTheme

    OverlappedPresenter
        PreferredMaximumSize
        PreferredMinimumSize
        SetPreferredBounds

    PlacementPersistenceBehaviorFlags
    TitleBarTheme

Microsoft.Windows.AI.ContentModeration

    ContentFilterOptions
    ContentFilterOptionsContract
    ImageContentFilterSeverity
    SeverityLevel
    TextContentFilterSeverity

Microsoft.Windows.AI.Generative

    ImageDescriptionContract
    ImageDescriptionGenerator
    ImageDescriptionScenario
    LanguageModel
    LanguageModelContext
    LanguageModelContract
    LanguageModelOptions
    LanguageModelResponse
    LanguageModelResponseStatus
    LanguageModelSkill

Microsoft.Windows.SemanticSearch

    EmbeddingVector
    SemanticSearchContract

Microsoft.Windows.Vision

    BoundingBox
    DetectedLineStyle
    OrientationDetectionOptions
    RecognizedLine
    RecognizedLineStyle
    RecognizedText
    RecognizedWord
    TextRecognitionContract
    TextRecognizer
    TextRecognizerOptions

Microsoft.Windows.Workloads

    WorkloadPriority
    WorkloadsContract

Version 1.7 Experimental (1.7.0-experimental2)

Background Task Registration

A new BackgroundTaskBuilder API enables registering background tasks for Windows App SDK apps. For more info, see GitHub #4831.

New Notifications Features

New badge notification support allows showing a number or glyph badge on your app in the taskbar. For more info, see GitHub #4926.

Important

In this release, the C# projections are missing for the new BadgeNotifications APIs, which prevents using them from C#. The APIs are available in C++.

Video or audio calling can have an enhanced user experience in notifications. For more info, see GitHub #4783.

Important

This functionality is only available on the latest Windows Insider releases of Windows.

Other notable changes

RichEditBox now supports math mode, via RichEditTextDocument.SetMathMode and RichEditTextDocument.SetMath.

New CompatibilityOptions support will allow more control over how servicing changes affect apps. For more info, see GitHub #4976.

New APIs

This release includes the following new and modified experimental APIs:

Microsoft.Security.Authentication.OAuth

    AuthFailure
    AuthRequestParams
    AuthRequestResult
    AuthResponse
    ClientAuthentication
    CodeChallengeMethodKind
    OAuth2Manager
    OAuthContract
    TokenFailure
    TokenFailureKind
    TokenRequestParams
    TokenRequestResult
    TokenResponse

Microsoft.UI.Composition

    CompositionNotificationDeferral
    CompositionProjectedShadow
        MaxOpacity
        MinOpacity
        OpacityFalloff

    CompositionProjectedShadowCaster
        AncestorClip
        Mask

    CompositionProjectedShadowDrawOrder
    CompositionProjectedShadowReceiver
        DrawOrder
        Mask

Microsoft.UI.Composition.Experimental

    ExpCompositionVisualSurface
    ExpExpressionNotificationProperty
    IExpCompositionPropertyChanged
    IExpCompositionPropertyChangedListener
    IExpCompositor
    IExpVisual

Microsoft.UI.Content

    AutomationTreeOptions
    ChildSiteLink
    ContentAppWindowBridge
    ContentDisplayOrientations
    ContentEnvironmentStateChangedEventArgs
        DidDisplayScaleChange

    ContentExternalBackdropLink
    ContentExternalOutputLink
    ContentIsland
        AutomationTreeOption
        Children
        Connected
        ConnectionInfo
        ConnectRemoteEndpoint
        CreateForSystemVisual
        Disconnected
        FindAllForSystemCompositor
        FragmentRootAutomationProvider
        GetBySystemVisual
        InputCapabilities
        IsRemoteEndpointConnected
        LocalToClientTransformMatrix
        LocalToParentTransformMatrix
        NextSiblingAutomationProvider
        ParentAutomationProvider
        Popups
        PreviousSiblingAutomationProvider
        Root

    ContentIslandEnvironment
        CurrentOrientation
        DisplayScale
        NativeOrientation
        ThemeChanged

    ContentIslandStateChangedEventArgs
        DidLocalToClientTransformMatrixChange
        DidLocalToParentTransformMatrixChange

    ContentSite
        InputCapabilities
        LocalToClientTransformMatrix
        LocalToParentTransformMatrix
        SetContentNodeParent
        TryGetAutomationProvider

    ContentSiteAutomationProviderRequestedEventArgs
    ContentSiteEnvironment
        CurrentOrientation
        DisplayScale
        NativeOrientation
        NotifyThemeChanged

    ContentSiteEnvironmentView
        DisplayScale

    ContentSiteView
        AutomationTreeOption
        InputCapabilities
        LocalToClientTransformMatrix
        LocalToParentTransformMatrix

    CoreWindowSiteBridge
    CoreWindowTopLevelWindowBridge
    DesktopChildSiteBridge
        AcceptRemoteEndpoint
        ConnectionInfo
        CreateWithDispatcherQueue
        IsRemoteEndpointConnected
        RemoteEndpointConnecting
        RemoteEndpointDisconnected
        RemoteEndpointRequestedStateChanged

    DesktopPopupSiteBridge
    DesktopSiteBridge
        TryCreatePopupSiteBridge

    EndpointConnectionEventArgs
    EndpointRequestedStateChangedEventArgs
    IContentIslandEndpointConnectionPrivate
    IContentNodeOwner
    IContentSiteAutomation
    IContentSiteBridgeEndpointConnectionPrivate
    IContentSiteInput
    IContentSiteLink
    IContentSiteLink2
    InputCapabilities
    PopupWindowSiteBridge
    ProcessStarter
    ReadOnlyDesktopSiteBridge
    SystemVisualSiteBridge

Microsoft.UI.Input

    InputFocusNavigationHost
        GetForSiteLink

    InputKeyboardSource
        GetForWindowId

    InputLayoutPolicy
    InputLightDismissAction
        GetForIsland

    InputPointerActivationBehavior
    InputPointerSource
        ActivationBehavior
        DirectManipulationHitTest
        GetForVisual
        GetForWindowId
        RemoveForVisual
        TouchHitTesting
        TrySetDeviceKinds

    ProximityEvaluation
    TouchHitTestingEventArgs

Microsoft.UI.Input.Experimental

    ExpInputSite
    ExpPointerPoint

Microsoft.UI.Text

    RichEditTextDocument
        GetMath
        SetMath
        SetMathMode

Microsoft.UI.Windowing

    AppWindow
        DefaultTitleBarShouldMatchAppModeTheme

    DisplayArea
        GetMetricsFromWindowId

Microsoft.UI.Xaml

    XamlIsland
    XamlRoot
        TryGetContentIsland

Microsoft.UI.Xaml.Automation.Peers

    AutomationEvents
        Notification

    InkCanvasAutomationPeer
    PagerControlAutomationPeer

Microsoft.UI.Xaml.Controls

    ContentDialogPlacement
        UnconstrainedPopup

    DoInkPresenterWork
    ElementFactory
    FlowLayout
    FlowLayoutAnchorInfo
    FlowLayoutLineAlignment
    FlowLayoutState
    IApplicationViewSpanningRects
    IndexPath
    InkCanvas
    ISelfPlayingAnimatedVisual
    ItemContainer
        CanUserInvoke
        CanUserInvokeProperty
        CanUserSelect
        CanUserSelectProperty
        ItemInvoked
        MultiSelectMode
        MultiSelectModeProperty

    ItemContainerInteractionTrigger
    ItemContainerInvokedEventArgs
    ItemContainerMultiSelectMode
    ItemContainerUserInvokeMode
    ItemContainerUserSelectMode
    LayoutPanel
    NumberBox
        InputScope
        InputScopeProperty
        TextAlignment
        TextAlignmentProperty

    PagerControl
    PagerControlButtonVisibility
    PagerControlDisplayMode
    PagerControlSelectedIndexChangedEventArgs
    PagerControlTemplateSettings
    ProgressRing
        DeterminateSource
        DeterminateSourceProperty
        IndeterminateSource
        IndeterminateSourceProperty

    RecyclePool
    RecyclingElementFactory
    ScrollingScrollStartingEventArgs
    ScrollingZoomStartingEventArgs
    ScrollView
        ScrollStarting
        ZoomStarting

    SelectionModel
    SelectionModelChildrenRequestedEventArgs
    SelectionModelSelectionChangedEventArgs
    SelectTemplateEventArgs
    StackLayout
        IsVirtualizationEnabled
        IsVirtualizationEnabledProperty

    StackLayoutState
    TitleBar
    TitleBarAutomationPeer
    TitleBarTemplateSettings
    UniformGridLayoutState

Microsoft.UI.Xaml.Controls.Primitives

    ScrollPresenter
        ScrollStarting
        ZoomStarting

Microsoft.Windows.ApplicationModel.Background

    BackgroundTaskBuilder
    BackgroundTaskContract

Microsoft.Windows.ApplicationModel.Background.UniversalBGTask

    Task

Microsoft.Windows.ApplicationModel.WindowsAppRuntime

    CompatibilityChange
    CompatibilityContract
    CompatibilityOptions
    DeploymentManager
        Repair

    DeploymentStatus
        PackageRepairFailed

    ReleaseInfo
    RuntimeInfo
    VersionInfoContract
    WindowsAppRuntimeVersion

Microsoft.Windows.AppNotifications

    AppNotification
        ConferencingConfig

    AppNotificationConferencingConfig

Microsoft.Windows.AppNotifications.Builder

    AppNotificationBuilder
        AddCameraPreview

    AppNotificationButton
        SetSettingStyle

    AppNotificationButtonSettingStyle

Microsoft.Windows.BadgeNotifications

    BadgeNotificationGlyph
    BadgeNotificationManager
    BadgeNotificationsContract

Microsoft.Windows.Media.Capture

    CameraCaptureUI
    CameraCaptureUIContract
    CameraCaptureUIMaxPhotoResolution
    CameraCaptureUIMaxVideoResolution
    CameraCaptureUIMode
    CameraCaptureUIPhotoCaptureSettings
    CameraCaptureUIPhotoFormat
    CameraCaptureUIVideoCaptureSettings
    CameraCaptureUIVideoFormat

Microsoft.Windows.Storage

    ApplicationData
        GetForUnpackaged

Version 1.7 Experimental (1.7.0-experimental1)

This is the latest release of the experimental channel.

To download, retarget your Windows App SDK NuGet version to 1.7.241114004-experimental1.

New CameraCaptureUI API

A new CameraCaptureUI API makes it easier to capture photos and videos in your Windows App SDK app. For more info, see GitHub issue #4721.

New Authentication API

A new OAuth2Manager API provides a streamlined solution for web authentication, offering OAuth 2.0 capabilities with full feature parity across all Windows platforms supported by Windows App SDK. For more info, see GitHub issue #4772.

New Background Task support

A new BackgroundTaskBuilder API brings integrated support for background task registration to your Windows App SDK apps. For more info, see GitHub issue #4822.

New APIs for 1.7-experimental1

This release includes the following new and modified experimental APIs:

Microsoft.Security.Authentication.OAuth

    AuthFailure
    AuthRequestParams
    AuthRequestResult
    AuthResponse
    ClientAuthentication
    CodeChallengeMethodKind
    OAuth2Manager
    OAuthContract
    TokenFailure
    TokenFailureKind
    TokenRequestParams
    TokenRequestResult
    TokenResponse

Microsoft.UI.Composition

    CompositionNotificationDeferral
    CompositionProjectedShadow
        MaxOpacity
        MinOpacity
        OpacityFalloff

    CompositionProjectedShadowCaster
        AncestorClip
        Mask

    CompositionProjectedShadowDrawOrder
    CompositionProjectedShadowReceiver
        DrawOrder
        Mask

Microsoft.UI.Composition.Experimental

    ExpCompositionVisualSurface
    ExpExpressionNotificationProperty
    IExpCompositionPropertyChanged
    IExpCompositionPropertyChangedListener
    IExpCompositor
    IExpVisual

Microsoft.UI.Content

    AutomationOptions
    ChildContentLink
    ContentAppWindowBridge
    ContentDisplayOrientations
    ContentEnvironmentStateChangedEventArgs
        DidDisplayScaleChange

    ContentExternalBackdropLink
    ContentExternalOutputLink
    ContentIsland
        Children
        Compositor
        Connected
        ConnectionInfo
        ConnectRemoteEndpoint
        Create
        Disconnected
        FindAllForCompositor
        FragmentRootAutomationProvider
        GetByVisual
        IsRemoteEndpointConnected
        NextSiblingAutomationProvider
        ParentAutomationProvider
        PreviousSiblingAutomationProvider
        Root
        TransformMatrix

    ContentIslandEnvironment
        AutomationOption
        CurrentOrientation
        DisplayScale
        NativeOrientation
        ThemeChanged

    ContentSite
        Compositor
        SetContentNodeParent
        SetIsInputPassThrough
        SiteVisual
        TransformMatrix
        TryGetAutomationProvider

    ContentSiteAutomationProviderRequestedEventArgs
    ContentSiteEnvironment
        CurrentOrientation
        DisplayScale
        NativeOrientation
        NotifyThemeChanged

    ContentSiteView
        TransformMatrix

    CoreWindowSiteBridge
    CoreWindowTopLevelWindowBridge
    DesktopChildSiteBridge
        AcceptRemoteEndpoint
        ConnectionInfo
        IsRemoteEndpointConnected
        RemoteEndpointConnecting
        RemoteEndpointDisconnected
        RemoteEndpointRequestedStateChanged

    DesktopSiteBridge
        TryCreatePopupSiteBridge

    EndpointConnectionEventArgs
    EndpointRequestedStateChangedEventArgs
    IContentIslandEndpointConnectionPrivate
    IContentLink
    IContentNodeOwner
    IContentSiteBridge2
    IContentSiteBridgeAutomation
    IContentSiteBridgeEndpointConnectionPrivate
    PopupWindowSiteBridge
    ProcessStarter
    ReadOnlyDesktopSiteBridge
    SystemVisualSiteBridge

Microsoft.UI.Input

    InputKeyboardSource
        GetForWindowId

    InputLayoutPolicy
    InputLightDismissAction
        GetForIsland

    InputPointerActivationBehavior
    InputPointerSource
        ActivationBehavior
        DirectManipulationHitTest
        GetForVisual
        GetForWindowId
        RemoveForVisual
        TouchHitTesting
        TrySetDeviceKinds

    ProximityEvaluation
    TouchHitTestingEventArgs

Microsoft.UI.Input.Experimental

    ExpInputSite
    ExpPointerPoint

Microsoft.UI.Windowing

    AppWindow
        DefaultTitleBarShouldMatchAppModeTheme

    DisplayArea
        GetMetricsFromWindowId

Microsoft.UI.Xaml

    XamlIsland
    XamlRoot
        TryGetContentIsland

Microsoft.UI.Xaml.Automation.Peers

    AutomationEvents
        Notification

    InkCanvasAutomationPeer
    PagerControlAutomationPeer

Microsoft.UI.Xaml.Controls

    ContentDialogPlacement
        UnconstrainedPopup

    DoInkPresenterWork
    ElementFactory
    FlowLayout
    FlowLayoutAnchorInfo
    FlowLayoutLineAlignment
    FlowLayoutState
    IApplicationViewSpanningRects
    IndexPath
    InkCanvas
    ISelfPlayingAnimatedVisual
    ItemContainer
        CanUserInvoke
        CanUserInvokeProperty
        CanUserSelect
        CanUserSelectProperty
        ItemInvoked
        MultiSelectMode
        MultiSelectModeProperty

    ItemContainerInteractionTrigger
    ItemContainerInvokedEventArgs
    ItemContainerMultiSelectMode
    ItemContainerUserInvokeMode
    ItemContainerUserSelectMode
    LayoutPanel
    NumberBox
        InputScope
        InputScopeProperty
        TextAlignment
        TextAlignmentProperty

    PagerControl
    PagerControlButtonVisibility
    PagerControlDisplayMode
    PagerControlSelectedIndexChangedEventArgs
    PagerControlTemplateSettings
    ProgressRing
        DeterminateSource
        DeterminateSourceProperty
        IndeterminateSource
        IndeterminateSourceProperty

    RecyclePool
    RecyclingElementFactory
    ScrollingScrollStartingEventArgs
    ScrollingZoomStartingEventArgs
    ScrollView
        ScrollStarting
        ZoomStarting

    SelectionModel
    SelectionModelChildrenRequestedEventArgs
    SelectionModelSelectionChangedEventArgs
    SelectTemplateEventArgs
    StackLayout
        IsVirtualizationEnabled
        IsVirtualizationEnabledProperty

    StackLayoutState
    TitleBar
    TitleBarAutomationPeer
    TitleBarTemplateSettings
    UniformGridLayoutState

Microsoft.UI.Xaml.Controls.Primitives

    ScrollPresenter
        ScrollStarting
        ZoomStarting

Microsoft.Windows.ApplicationModel.Background

    BackgroundTaskBuilder
    BackgroundTaskContract

Microsoft.Windows.ApplicationModel.Background.UniversalBGTask

    Task

Microsoft.Windows.ApplicationModel.WindowsAppRuntime

    DeploymentManager
        Repair

    DeploymentStatus
        PackageRepairFailed

    ReleaseInfo
    RuntimeInfo
    VersionInfoContract

Microsoft.Windows.Media.Capture

    CameraCaptureUI
    CameraCaptureUIContract
    CameraCaptureUIMaxPhotoResolution
    CameraCaptureUIMaxVideoResolution
    CameraCaptureUIMode
    CameraCaptureUIPhotoCaptureSettings
    CameraCaptureUIPhotoFormat
    CameraCaptureUIVideoCaptureSettings
    CameraCaptureUIVideoFormat

Microsoft.Windows.Storage

    ApplicationData
        GetForUnpackaged

Bug fixes

This release includes the following bug fixes:

Changed SplitButton so touch input now matches the behavior of mouse input. For more info, see GitHub issue #178.

Changed cascading menus so sub menus now open immediately if clicked. For more info, see GitHub issue #939.

Fixed an issue where opening a ComboBox which is in a flyout closes all flyouts. For more info, see GitHub issue #1467.

Fixed an issue where SwipeControl would randomly crash in a ListView. For more info, see GitHub issue #2527.

Fixed an issue where drag-and-drop only a ListViewItem would leave it in the wrong visual state. For more info, see GitHub issue #3458.

Fixed an issue in StackLayout so that it respects the ItemsRepeater.HorizontalAlignment and ItemsRepeater.VerticalAlignment properties (when StackLayout.Orientation is Vertical and Horizontal respectively). The old layout behaved as if the ItemsRepeater alignment was Stretch. With the fix, the layout results in items aligned to the right when the Right alignment is used, for example. For more info, see GitHub issue #3842.

Fixed an issue where deleting items in the ItemsRepeater's source would not generate items which moved up into view. For more info, see GitHub issue #6661.

Fixed an issue where the right Alt key would not show keytips for Access Keys. For more info, see GitHub issue #8447. Note: This may result in key events for the right Alt key no longer being delivered to handles in the app or controls.

Fixed a crash where UniformGridLayout would sometimes pick a wrong layout anchor and cause infinite layout passes when scrolling backwards. For more info, see GitHub issue #9199.

Fixed an issue where setting NavigationFailedEventArgs.Handled to True would still throw an exception. For more info, see GitHub issue #9632.

Fixed an issue where TabView would not apply any specified CornerRadius. For more info, see GitHub issue #9846.

Fixed a potential layout cycle crash in StackLayout. For more info, see GitHub issue #9852.

Fixed a potential crash in ItemsView when removing items. For more info, see GitHub issue #9868.

Feedback

Was this page helpful?

Last updated on 2025-12-20

Share via

Windows App SDK 1.7 release notes

Version 1.7.9 (1.7.260224002)

Version 1.7.8 (1.7.260208005)

Version 1.7.7 (1.7.260114001)

Version 1.7.6 (1.7.251107005)

Version 1.7.5 (1.7.251014001)

Version 1.7.4 (1.7.250909003)

Version 1.7.3 (1.7.250606001)

Version 1.7.2 (1.7.250513003)

Phi Silica Text Intelligence

Image Description

Text Recognition

Image Super Resolution

Image Segmentation

Version 1.7.1 (1.7.250401001)

Version 1.7.0 (1.7.250310001)

Version 1.7 Preview 1 (1.7-preview1)

Version 1.7 Experimental (1.7.0-experimental3)

Phi Silica

Text Recognition (OCR)

Image Super Resolution

Image Description

Image Segmentation

Version 1.7 Experimental (1.7.0-experimental2)

Version 1.7 Experimental (1.7.0-experimental1)

Feedback

Additional resources