C# is the most popular language in the .NET ecosystem and was first introduced with the .NET Framework in 2002. The current stable version of C# is 7. The following chart shows how C# 7.0 has progressed and what versions were introduced in different years:

Here are some of the new features that were introduced with C# 7.0:

• Tuples
• Pattern matching
• Reference returns
• Exceptions as expressions
• Local functions
• Out variables Literals
• Async Main