Книга: C# 2008 Programmer

Versions of the .NET Framework and Visual Studio

Versions of the .NET Framework and Visual Studio

Microsoft officially released the .NET Framework in January 2002. Since then, the .NET Framework has gone through a few iterations, and at the time of writing it stands at version 3.5. While technically you can write .NET applications using a text editor and a compiler, it is always easier to write .NET applications using Visual Studio, the integrated development environment from Microsoft. With Visual Studio, you can use its built-in debugger and support for IntelliSense to effectively and efficiently build .NET applications. The latest version of Visual Studio is Visual Studio 2008.

The following table shows the various versions of the .NET Framework, their release dates, and the versions of Visual Studio that contain them.

Version  Version Number  Release Date  Versions of Visual Studio shipped
1.0 1.0.3705.0 2002-01-05 Visual Studio .NET 2002
1.1 1.1.4322.573 2003-04-01 Visual Studio .NET 2003
2.0 2.0.50727.42 2005-11-07 Visual Studio 2005
3.0 3.0.4506.30 2006-11-06 Shipped with Windows Vista
3.5 3.5.21022.8 2007-11-19 Visual Studio 2008

Starting with Visual Studio 2005, Microsoft dropped the .Net name from the Visual Studio.

The .NET Framework 3.5 builds upon version 2.0 and 3.0 of the .NET Framework, so it essentially contains the following components:

? .NET Framework 2.0 and .NET Framework 2.0 Service Pack 1

? .NET Framework 3.0 and .NET Framework 3.0 Service Pack 1

? New features in .NET 3.5

.NET Framework version 3.5 is dependent on .NET 2.0 and 3.0. If you have a computer with .NET 1.0, 1.1, and 2.0 installed, these three versions are completely separate from each other. When you install .NET 3.5 on a computer without the .NET Framework installed, it will first install .NET 2.0, followed by .NET 3.0, and then finally the new assemblies new in .NET 3.5.

Figure 1-4 summarizes the relationships between .NET 2.0, 3.0, and 3.5.

Figure 1-4

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