The document discusses the evolution of ASP.NET vNext, highlighting its transition to a more agile, open-source, and cross-platform web development framework. Key features include the removal of the system.web assembly in favor of NuGet packages, improved request pipeline control, and the integration of MVC, Web API, and Web Pages into a unified MVC 6 framework. Additionally, ASP.NET vNext introduces the Roslyn compiler for dynamic code compilation and is designed to be cloud-ready.