Latest Move : Dot Net 2.0 to Dot Net 3.5

So we moved one of our products from Dot Net 2.0 to Dot Net 3.5. Our move planning was simple,

1. Study the breaking changes list and see if anything is critical to our application - apparently nothing was.

2. Make a copy of application and export it to VS 2008 - This worked fine too

3. Provide a copy to QA for testing and see that how it works.

And with some minor issues, everything turned out to be quite fine. Here let me tell you a few more things ,

1. If you have installed 3.5 on your machine and then went to IIS >> ASP.Net tab, and surprisingly version 3.5 was not there, then don't be surprised. Version 3.5 actually uses 2.0 engine, there is no change with regards to IIS, so leave the version at 2.0.

2. You'll need to change the compilation version to 3.5, for that you just need to add the following to your web.config

<system.codedom>
<compilers>
<compiler language="c#;cs;csharp" extension=".cs" type="Microsoft.CSharp.CSharpCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
<provideroption name="CompilerVersion" value="v3.5">
</provideroption>
</compiler>
</compilers>
</system.codedom >

And your job is done!