.NET is going to Open source and Cross-Platform

The next release of .NET will enable .NET cloud applications on multiple platforms, with future support of the core .NET server runtime and libraries for Linux and Mac. This implementation will be part of the .NET Foundation, home of the increasing number of .NET components being open sourced. Join and participate by visiting the .NET Foundation and the related GitHub repositories.

Download Visual Studio 2015 Preview and .NET 2015 Preview

These previews provide a first glimpse of Microsoft’s investment in an innovative set of technologies to help you efficiently build powerful, versatile applications across the platform spectrum – from Windows to web to iOS and Android. A few highlights include:

Cross-platform ASP.NET 5 websites

Multi-device app support, with Visual Studio Tools for Apache Cordova and the new Visual C++ tools for cross-platform library development.

Connected Services, enabling easier integration of services into apps including Office 365, SalesForce, and Azure Platform Services,

Smart Unit Testing (formerly PEX) technology from Microsoft Research.

For more info:

http://news.microsoft.com/2014/11/12/microsoft-takes-net-open-source-and-cross-platform-adds-new-development-capabilities-with-visual-studio-2015-net-2015-and-visual-studio-online/