A couple of months ago we released EF5 Beta 2. Since releasing Beta 2 we have made a number of changes to the code base, so we decided to publish a Release Candidate before we make the RTM available. This release is licensed for use in production applications. Because it is a pre-release version of EF5...

We have published a new version of the sample provider that supports features introduced in the Entity Framework 5. It can be downloaded from the MSDN Code Samples Gallery . This updated sample takes the sample provider code we released for Entity Framework 4 and demonstrates how to add support for spatial...

The Entity Framework Power Tools provide additional design-time tools in Visual Studio to help you develop using the Entity Framework. Today we are releasing Beta 2 of the Power Tools.   Where do I get it? The Entity Framework Power Tools are available on the Visual Studio Gallery. You can also...

Over the past few weeks the EF team has been putting together a whitepaper that talks about the performance considerations developers should take when using Entity Framework. Performance is one critical aspect of developing modern applications, and this document will help developers make informed design...

A few weeks ago we released EF5 Beta 1, since then we’ve been working to improve quality and polish up the release. Today we are making EF5 Beta 2 available on NuGet. This release is licensed for use in production applications. Because it is a pre-release version of EF5 there are some limitations, see...

Today we are pleased to announce the release of two new versions of the EntityFramework NuGet package. The 4.3.1 version includes some bug fixes for the 4.3 package we released a few weeks ago. We are also making the first beta of EF 5 available as a pre-release package.   What’s in 5.0.0-beta1...

An O/RM, like any layer of abstraction, introduces overhead to data access. In EF 5.0 we have taken steps to reduce this overhead and improve performance. As a result in one of our tests, repeat execution time of the same LINQ query has been reduced by around 6x. We also have an end-to-end application...

Over the last six months we’ve released a series of previews of our Code First Migrations work. Today we are making the first fully supported go-live release of our migrations work available as part of EF 4.3.   What Changed Between EF 4.2 and EF 4.3 The notable changes between EF 4.2 and EF 4.3...

We have released the first go-live release of our Code First Migrations work as part of Entity Framework 4.3 . This post will provide an overview of the functionality that is available inside of Visual Studio for interacting with migrations. We will focus on the code-based workflow for using migrations...

We have released the first go-live release of our Code First Migrations work as part of Entity Framework 4.3 . This post will provide an overview of the functionality that is available inside of Visual Studio for interacting with migrations. We will focus on the workflow that combines automatic and code...

This preview is no longer current. A go-live release of Entity Framework 4.3 is now available. At the end of November we released Beta 1 of Code First Migrations. At the time we released Code First Migration Beta 1 we also announced that we would be rolling the migrations work into the main EntityFramework...

This preview is no longer current. A go-live release of Entity Framework 4.3 is now available. We have released the final preview of the Code First Migrations work as part of Entity Framework 4.3 Beta 1 . This post will provide an overview of the functionality that is available inside of Visual Studio...

This preview is no longer current. A go-live release of Entity Framework 4.3 is now available. We have released the final preview of the Code First Migrations work as part of Entity Framework 4.3 Beta 1 . This post will provide an overview of the functionality that is available inside of Visual Studio...

We recently released Entity Framework 4.3 Beta 1 which includes the ability to configure more DbContext and Code First related settings from your applications Web.config or App.config file. These Settings are Optional Code First and the DbContext API follow a ‘convention over configuration’ principle...

This preview is no longer current. Code First Migrations is included in Entity Framework starting with Entity Framework 4.3 . At the end of September we released Alpha 3 of Code First Migrations. Based on Alpha 2 and Alpha 3 feedback your telling us that we are building the right thing… so it’s time...

This preview is no longer current. Code First Migrations is included in Entity Framework starting with Entity Framework 4.3 . We have released the fourth preview of our migrations story for Code First development; Code First Migrations Beta 1 . This release includes a preview of the developer experience...

This preview is no longer current. Code First Migrations is included in Entity Framework starting with Entity Framework 4.3 . We have released the fourth preview of our migrations story for Code First development; Code First Migrations Beta 1 . This release includes a preview of the developer experience...

We recently posted about our plans to rationalize how we name, distribute and talk about releases. We heard a resounding ‘Yes’ from you so then we posted about our plans for releasing EF 4.2. We then shipped a Beta and a Release Candidate of EF 4.2. Today we are making the final release of EF 4.2 available...

The EF team has been working to become more agile and get new features into your hands faster. Our first two releases shipped as part of the .NET Framework but, as the result of an effort to release more often, in recent times we have been shipping a slew of “out-of-band” features that build...

We recently posted about our plans to rationalize how we name, distribute and talk about releases. We heard a resounding ‘Yes’ from you so then we posted about our plans for releasing EF 4.2. We then shipped EF 4.2 Beta 1. Third party EF provider writers tried out EF 4.2 Beta 1 and identified...

This post will provide an introduction to Code First development and how it can be used with the DbContext API surface. Code First allows you to define your model using C# or VB.Net classes, optionally additional configuration can be performed using attributes on your classes and properties or by using...

This post will provide an introduction to Model First and Database First development with the DbContext API, using the Entity Data Model Designer in Visual Studio. You will need to have Visual Studio 2010 or Visual Studio 11 installed to complete this walkthrough.   1. Create the Application To...

This preview is no longer current. Code First Migrations is included in Entity Framework starting with Entity Framework 4.3 . A couple of weeks ago we released Alpha 2 of Code First Migrations. Today we are happy to make Alpha 3 available to you. The overall feedback we got on Alpha 2 was that you like...

This preview is no longer current. Code First Migrations is included in Entity Framework starting with Entity Framework 4.3 . We have released the third preview of our migrations story for Code First development; Code First Migrations Alpha 3 . This release includes a preview of the developer experience...

This preview is no longer current. Code First Migrations is included in Entity Framework starting with Entity Framework 4.3 . We have released the third preview of our migrations story for Code First development; Code First Migrations Alpha 3 . This release includes a preview of the developer experience...