.Net Framework Features From .Net 2.0,3.0,3.5,4.0 & 4.5

1. .Net Framework 2.0 Features

    ADO.NET 2.0
    SQL Server data provider (SqlClient)
    XML
    .NET Remoting
    ASP.NET 2.0

2. .Net Framework 3.0/3.5 Features

    Windows Presentation Foundation (WPF)
    Windows Communication Foundation (WCF)
    Windows Workflow Foundation (WWF)
    Windows Card Space (WCS)
    Core New Features and Improvements:

        Auto Implemented
        Implicit Typed local variable
        Implicitly Typed Arrays
        Anonymous Types
        Extension Methods (3.5 new feature)
        Object and Collection Initializers
        Lambda Expressions

3. .Net Framework 4.0 Features

    Application Compatibility and Deployment
    Core New Features and Improvements

        BigInteger and Complex Numbers
        Tuples
        Covariance and Contravariance
        Dynamic Language Runtime

    Managed Extensibility Framework
    Parallel Computing
    Networking
    Web
    Client
    Data
    Windows Communication Foundation
    Windows Workflow Foundation

4. .Net Framework 4.5 Features

    .NET for Windows Store Apps
    Portable Class Libraries
    Core New Features and Improvements
    Tools
    Parallel Computing
    Web
    Windows Presentation Foundation (WPF)
    Windows Communication Foundation (WCF)
    Windows Workflow Foundation (WF)

Referance Link : http://www.c-sharpcorner.com/uploadfile/sujit9923/net-framework-features-from-net-2-0-to-4-5/