This browser is no longer supported. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. March 2007 Anders Hejlsberg, Mads Torgersen Applies to: Visual C# 3.0 Summary: Technical overview of C# 3.0 ("C# Orcas"), which introduces several language extensions that build on C# 2.0 to support the creation and use of higher order, functional style