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The information in this post is out of date.
Visit msdn.com/data/ef for the latest information on current and past releases of EF.
A refresh of the POCO Template that is compatible with Visual Studio 2010 Release Candidate is now available in the Extension Manager of Visual Studio and through Visual Studio Gallery.
For an introduction on how to use the template, please see the POCO Template Walkthrough (no updates have been made to the walkthrough for this version).
The RC compatible version of the POCO Template contains all the improvements made in the Beta 2 compatible version, including generated code improvements, relationship fixup, foreign keys, etc. In addition, the new version includes additional but fixes and compatibility with ASP.NET Web Site projects.
There are now four different versions of the template:
Note that the POCO Template is not going to be part of Visual Studio 2010 in RTM. Instead the current plan is to continue delivering updates for it through the Extension Manager and Visual Studio Gallery.
Note that the Beta 2 compatible versions are no longer available in Visual Studio Gallery. If you still need a version for Visual Studio 2010 Beta 2, you can temporarily find it attached to the original announcement.
If you run into any problem or limitation with the POCO Template, please enter a bug or suggestion through the Microsoft Connect site for Entity Framework.
You can also provide feedback or ask your questions in the Entity Framework Pre-Release Forum.
Diego Vega, Entity Framework Team