Versions and Summary of C#

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Versions and Summary of C#

Vesion of C#

Version	CLR	Date	.NET Framework	Visual Studio
C# 1.0	1.0	January 2002	.NET Framework 1.0	Visual Studio .Net 2002
C# 1.2	1.1	April 2003	.NET Framework 1.1	Visual Studio .Net 2003
C# 2.0	2.0	November 2005	.NET Framework 2.0	Visual Studio 2005
C# 3.0	2.0/2.0 SP1	November 2007	.NET Framework 2.0/3.0/3.5	Visual Studio 2008
C# 4.0	4.0	April 2010	.NET Framework 4.0	Visual Studio 2010
C# 5.0	4.5	August 2012	.NET Framework 4.5	Visual Studio 2012

Features of C# according to Versions

Summary of versions

C# 2.0

C# 3.0

C# 4.0

C# 5.0

Future

Generics
Partial types
Anonymous methods
Iterators
Nullable types
Private setters (properties)
Method group conversions (delegates)
Covariance and Contra-variance
Static classes

Implicitly typed local variables
Object and collection initializers
Auto-Implemented properties
Anonymous types
Extension methods
Query expressions
Lambda expressions
Expression trees
Partial Methods

Dynamic binding
Named and optional arguments
Generic co- and contravariance
Embedded interop types ("NoPIA")

Asynchronous methods
Caller info attributes

C# 5.0

Compiler-as-a-service (Roslyn)

C# 6.0

Import type members into namespace
Succinct syntax for primary constructors
Readonly properties
Property expressions (property lambdas)
Method expressions
Parameter arrays for IEnumerable interfaces
Succinct null checking
Multiple return values
Constructor type inference