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# Windows UI Library Roadmap
WinUI is the native UI platform for Windows 10. This document outlines the prospective roadmap for WinUI through 2020 and into 2021. WinUI is under active development by the Windows developer platform team and the roadmap will continue to evolve based on market changes and customer feedback, so please note that the plans outlined here aren't exhaustive or guaranteed. We welcome your feedback on the roadmap: please feel free to contribute to existing issues or [file a new issue](https://github.com/microsoft/microsoft-ui-xaml/issues).
**Note: For a detailed look at the target availability dates for certain features in WinUI 3, see [our feature roadmap](#winui-30-feature-roadmap).**
WinUI continues to advance and improve across both generations of the technology:
1. **WinUI 2**: The 2nd generation of the WinUI stack for UWP apps, consisting of a XAML and Visual Layer built directly into the Windows 10 operating system, and a controls library built on top of the OS, delivered via NuGet, and hosted at this repository.
2. **WinUI 3**: A new, 3rd generation of WinUI that ships the entire WinUI stack decoupled from the operating system and usable in either Win32 or UWP apps.
### Benefits of WinUI
WinUI provides a number of benefits which makes it the best way to create user interfaces for Windows apps:
1. **The native UI platform of Windows**
WinUI is the highly-optimized native UI platform used to create Windows itself, now made more broadly available for all developers to use to reach Windows. It's a thoroughly tested and proven UI platform that powers the operating system environment and essential experiences of 1 billion+ Windows 10 PC, XBox One, HoloLens, Surface Hub and other devices.
2. **The latest advancements in Fluent Design**