History

C#

1.0 (2002)

• Hello, World!

2.0 (2005)

• Generic

3.0 (2007)

• cs => cs.Linq

4.0 (2010)

• dynamic

5.0 (2012)

• async

6.0 (2005)

Language Features

• Auto Property Initializer

public Guid Id { get; } = Guid.NewGuid();

• Primary Constructor
• using Static Typename

using System.Console;
class Program
{
  public static void Main()
  {
    WriteLine("Hello World!");
  }
}

• Dictionary Initializers

var _users = new Dictionary<string, string>() { 
  ["admin"] = "Ram",
  ["guest"] = "Sham"
}

• Numeric Literals

public byte Code { get; } = 0b1100;
public long Length { get; } = 1_000_000_000;

• Declaration Expression

foreach (var n in var odd = numbers(n +. n %2 == 1).ToList())
{
}

• Await in Catch block

Compiler Features

• Rosyln : .Net Compiler -> Open Source