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Chapter 1. Getting acquainted with ASP.NET 4.0 > What’s new in ASP.NET 4.0

1.4. What’s new in ASP.NET 4.0

Let’s assume this is your first time with .NET Framework version 4.0. As in the previous releases, .NET Framework 4.0 includes not only a new version of ASP.NET, but new technologies inside the framework itself. Even though the framework includes these technologies, you don’t always have to use them in your ASP.NET applications.

Upgrading an existing application to this new version is painless. Version 4.0 includes all the features of the earlier versions. If you’re planning to migrate an application from version 2.0 or 3.5, rest easy; you won’t need to modify your code.


  

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