Sources are listed in specific folders. You can determine what functionality is intended to be included as part of a formal release from the ASP.NET team if the folder is a 'versioned' folder, such as "v1.0". All other folders are "futures"
source for which we have not yet determined the roadmap or like all pre-release code we may not formally release. All folders contain a Visual Studio class library project, each rolling into a Visual Studio Solution which includes any dependencies