Can a Windows 10 app built on the Universal Windows Platform (UWP) be ported back to Windows 7 customers? In particular, one made using XAML?
WinUI 3.0 will ship independently of Windows, allowing its features and capabilities to be used on in-market versions of Windows 10. As of today, with Uno Platform WinUI can also run on Windows 7, broadening its reach beyond UWP apps to traditional Win32 applications as well by utilizing WebAssembly.
Microsoft continues to baby-step around the obvious, but it has officially deprecated the Universal Windows Platform (UWP) as it pushes the desktop-focused Windows App SDK (formerly called Project Reunion) and WinUI 3 as the future of Windows application development.
Compatibility. UWP is a part of Windows 10, Windows 10 Mobile and Windows 11. UWP apps do not run on earlier Windows versions. Apps that are capable of implementing this platform are natively developed using Visual Studio 2015, Visual Studio 2017 or Visual Studio 2019.
Well this is where the Uno Platform kicks in – the platform today uses UWP as the definition for the cross platform APIs. In essence, the apps you build for Windows using UWP can be taken cross platform to iOS, Android, Web etc by leveraging Uno.
The UWP platform is only available for Windows 10 devices. We can't port it back.
If you want to use it on Windows 7 device. You can make a WPF, which use XAML, the same as UWP. And WPF can run on Window 7. Particular XAML and C# code can be reused.
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