juan
juan

Reputation: 81984

What is the compatibility on .NET 4.0?

We have several .NET applications developed in .NET 3.5 (Windows services, web applications, and WCF services) in different servers.

I'd like to migrate to .NET 4.0 and use VS.NET 2010.

Upvotes: 1

Views: 252

Answers (2)

Francis Gagné
Francis Gagné

Reputation: 65927

Visual Studio 2010 can target versions 2.0, 3.0, 3.5 and 4 of the .NET Framework. If a version of the framework is installed on your computer but doesn't show up in Visual Studio 2010, install .NET 3.5 SP1.

When opening a solution created in a previous version, Visual Studio will convert the solution to the new format. This means that everyone working on a solution will have to use the same version of Visual Studio. However, with the possibility to target different framework versions, this shouldn't be a problem.

Upvotes: 2

Femaref
Femaref

Reputation: 61497

  1. Yes, it does
  2. No you can't, the other runtime versions have to be installed. But you are able to run < 4.0 in a 4.0 .net process (e.g. a class library or so). msdn

Upvotes: 5

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