new Roslyn compiler for C# and Visual Basic with faster compile times and live code analysis.cross-platform debugging support with Visual Studio Emulator for Android, Visual Studio Tools for Apache Cordova and Xamarin.significant improvements in UI design with Blend.the wizard to add connected services like Azure, Office 365 and Salesforce.graphics diagnostics, with DirectX 12 apps debug support.“ Device preview” menu bar, to see how your XAML-based UI will render.cross-platform mobile device development support (in C# with Xamarin or Unity, in HTML/Javascript with Apache Cordova), the introduction of ASP.NET 5 for the web, new .NET Framework v4.6 (150 new APIs and 50 other updates).sign in across multiple Visual Studio accounts through the new “Account Manager”.The main changes from the previous version in 2013 are: Visual Studio 2015 is a Microsoft product integrating developer productivity tools, cloud services, and extensions to create great apps and games for the web, Windows Store, the desktop, for Android and iOS.
