microsoft/WindowsAppSDK v1.8.9

Windows App SDK 1.8.9 (1.8.260529003)

Repository: microsoft/WindowsAppSDK

Tag: v1.8.9

Published: 2026-06-09T23:28:02Z

Prerelease: no

Release notes:

Windows App SDK 1.8.9 (1.8.260529003)

WinAppSDK 1.8.9 is the latest stable servicing release for 1.8, with two reliability fixes in WinUI input and items controls.

Bug fixes:

| Bug fix | Runtime Compatibility Change | |---------|------------------------------------| | Fixed a memory leak in ItemsRepeater where recycled elements were never garbage collected due to a reference cycle through the RecyclePool, which could also cause crashes in InvalidateChildrenMeasure. | ItemTemplateWrapper_RecyclePoolLeak | | Fixed a potential crash when releasing touch contacts in a ScrollViewer before scrolling. | InputPointerSource_TouchUpScrollCrashFix |

Try it out

• Download the 1.8.260529003 NuGet package to use WinAppSDK 1.8 in your app.

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.