Creating apps for Windows 8.1 and Windows Phone 8.1
You can update your older Windows Phone project to become either a Windows Phone 8.1 app, or a universal Windows app, and immediately increase the potential audience.
Although an app compiled for Windows Phone 8 will continue to run on a Windows Phone 8.1 device, updating the project will make new features and APIs available, and simplify sharing code with Windows 8.1 projects. Microsoft Visual Studio 2013 Update 2 will automatically update Windows Phone 8 projects for you.
- Visual Studio Magazine: Windows Phone 8.1: A Giant Leap Forward for Convergence
- How to upgrade an app project to Windows Phone 8
- Migrate your Windows Phone 8.0 DirectX Project to Windows Phone 8.1
- Retarget your Windows Store app to Windows 8.1
- Windows Phone 8 and Windows 8 app development
- Building universal Windows apps for all Windows devices