Learn about the new features available in C# 7.1 and 7.2, including async Main, default literals, ref extension methods, in parameters and more. Also get a glimpse of the future with nullable reference types.Product info: www.dot.netLearn more: docs.microsoft.com/en-us/dotnet/csharp/Documentation: docs.microsoft.com/en-us/dotnet/csharp/whats-new/