microsoft/WindowsAppSDK v1.8.6

Windows App SDK 1.8.6 (1.8.260317003)

Repository: microsoft/WindowsAppSDK

Tag: v1.8.6

Published: 2026-03-18T23:04:46Z

Prerelease: no

Release notes:

Windows App SDK 1.8.6 (1.8.260317003)

WinAppSDK 1.8.6 is the latest stable version of WinAppSDK 1.8 providing new features and improvements to the platform.

Whats new in WinAppSDK 1.8.6:

• New SplitMenuFlyoutItem control is designed to provide a split button experience within a menu flyout.
• Windows ML can now be used from C++ projects using CMake.
• The version of ONNX Runtime has been updated to 1.23.4.

Bug fixes:

| Bug Fix | Runtime Compatibility Change | |---------|------------------------------------| | Fixed a pointer arithmetic issue in the app-instance activation-redirection shared-memory queue that could cause incorrect behavior when using AppInstance.RedirectActivationTo. | AppLifecycle_SharedMemoryRedirectionQueueFix | | Fixed an issue in the deployment manager where activity data was being incorrectly reset during package installation and license operations. | DeploymentManager_ActivityCollectionFix | | Improved diagnosability for Text Intelligence APIs used in Windows AI scenarios. | TextIntelligence_Insights | | Fixed a visual alignment issue with AppBarToggleButton in CommandBarFlyout secondary commands. | N/A |

Try it out

• Download the 1.8.260317003 NuGet package to use WinAppSDK 1.8.6 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:

• Install developer tools .
• Create a WinUI 3 app.
• Continue your development journey.