Entity Framework Tutorial--Overview

Entity Framework Foundation

This textbook will teach you how to use the Entity Framework, and we will use Entity Framework 6.0 and Visual Studio 2012.

The following table is a major version of the Entity Framework

Version	Function
EF 3.5	Provides database first functionality
EF 4.0	POCO (Plain old CLR Object/poco) support, lazy loading, testability improvements, customizable code generation, and Model first workflows.
EF 4.1	In the first release on NuGet, this release includes the simplified DbContext API and the Code primary workflow. EF 4.1.1 Fixes some of the vulnerabilities in EF 4.1
EF 4.3	The EF 4.3 release includes the new Code first migration feature, which allows the database created by code first to be incrementally changed with the evolution of the code first model. EF 4.3.1 Fixes some of the vulnerabilities in EF 4.3
EF 5.0	EF is officially open source. This release introduces some new features, including enumeration support, table-valued functions, spatial data types, and various performance improvements. The Entity Framework designer in Visual Studio 2012 also supports using multiple diagrams for each model, coloring shapes on the design surface, and bulk importing stored procedures.
EF 6.0	The latest version of EF includes the latest features such as code first, asynchronous queries and insertions, and more.

For more information on the EF version, see MSDN

Entity Framework Tutorial--Overview