2.3.2-experimentalA 🧪

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

• Download the 2.3.2-experimentalA NuGet package to use WinAppSDK 2.3 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.