A container that allows users to show or hide content, commonly used in Settings pages.

: Microsoft continued its "accessibility by design" philosophy, improving Screen Reader (Narrator) support for complex controls like the NavigationView and InfoBar .

Microsoft.UI.Xaml 2.8 represents the last major 2.x release before the transition to the Windows App SDK. It decouples XAML UI framework from the OS, enabling modern controls and styling on Windows 10, version 1809 and later, without requiring the latest OS build. It introduces key performance improvements, new controls, and better Win32 interop.

: It includes XamlDirect APIs , which are purpose-built for middleware and high-performance scenarios where UI must be created imperatively in code rather than through standard markup. Context within the Windows Ecosystem While WinUI 3 is now the primary focus for new desktop development, WinUI 2.8 remains the most current stable version for production UWP applications. It provides a modern look and feel (Fluent Design) for existing UWP apps that cannot easily migrate to the Windows App SDK, ensuring they remain visually consistent with the Windows 11 interface. For more detailed technical information, explore these developer resources: Official Release Notes Getting Started API Reference Official WinUI 2.8 Release Notes The

You can install this package via the Visual Studio NuGet Package Manager.