Windows App SDK Files

The Windows App SDK empowers all Windows desktop apps

This is an exact mirror of the Windows App SDK project, hosted at https://github.com/microsoft/WindowsAppSDK. SourceForge is not affiliated with Windows App SDK.

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Name	Modified	Size	InfoDownloads / Week
Parent folder
README.md	2026-06-08	1.5 kB	0
Windows App SDK 1.8.9 (1.8.260529003) source code.tar.gz	2026-06-08	159.7 MB	0
Windows App SDK 1.8.9 (1.8.260529003) source code.zip	2026-06-08	161.2 MB	1
Totals: 3 Items		320.9 MB	1

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:

Source: README.md, updated 2026-06-08

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