Windows App SDK
Windows App SDK (formerly known as Project Reunion) is a software development kit (SDK) from Microsoft that provides a unified set of APIs and components that can be used to develop desktop applications for both Windows 11 and Windows 10 version 1809 and later. The purpose of this project is to offer a decoupled implementation of capabilities which were previously tightly-coupled to the UWP app model. Windows App SDK allows native Win32 (USER32/GDI32) or .NET (WPF/WinForms) developers alike a path forward to enhance their apps with modern features.
| Other names | Project Reunion |
|---|---|
| Developer(s) | Microsoft |
| Initial release | 29 March 2021 |
| Stable release | |
| Preview release | |
| Repository | |
| Written in | C++ |
| Operating system | Windows 11, Windows 10 version 1809 and later |
| Platform | x86-64, ARM64, IA-32 |
| Type | Application programming interface (API) |
| License | MIT License |
| Website | learn |
It follows that Windows App SDK is not intended to replace the Windows SDK. By exposing a common application programming interface (API) primarily using the Windows Runtime (WinRT) through generated WinMD metadata, the tradeoffs which once characterized either app model are largely eliminated. NuGet packages for version 1.4 were released in August 2023 after approximately four months of development.