Leverage the multiple cores in your system using the Task Parallel Library provided by Microsoft .Net Framework
Entity Framework 7, a major redesign of Entity Framework, provides support for non-relational data stores and in-memory data. Also, Windows Phone and Windows Store applications are supported. You can work with Entity Framework 7 on even Linux and Mac....
Build cross-platform, high-performance modern web applications with ASP.Net 5
Leverage the power of the new in-memory OLTP engine included in SQL Server 2014 for faster performance and lower query latency
Leverage the new features in C# 6.0 to write code that is clean and easier to write and maintain
Significant improvements in .Net Framework 4.5
This blog post provides a quick tour of what's new in Visual Studio 2015 CTP 5.