Today, Unity announced the release of Unity 5.2 which includes support for Windows 10 and the Universal Windows Platform (UWP).
With UWP support in Unity 5.2, developers can build a single game for Windows 10 that targets multiple devices ranging from phones to tablets to PCs to Xbox. This means that multiple screen sizes and resolutions, different device capabilities, and a wide range of aspect ratios are all supported within a single game.
To learn more about Unity support for Windows 10, please check out the video below. This talk, from the Build 2015 conference in April, provides information and demos showing how to write Unity games that use the Universal Windows Platform and target multiple devices.
http://channel9.msdn.com/Events/Build/2015/2-648
Also, starting Unity 5.2, Visual Studio becomes the new default Unity scripting editor on Windows. The Unity installer on Windows offers to install by default the free Visual Studio Community 2015 and the Visual Studio 2015 Tools for Unity. Unity will automatically pick up VSTU where it is installed. Scripts will open directly into Visual Studio where you’ll be able to write and debug your Unity game. More on Visual Studio blog and check out these new Visual Studio tools and reading the documentation.