Create a system to target multiple versions of .NET

Question

What are the common design / project structure design methods that allow you to configure multiple .NET versions with different feature sets?

In particular:

• Should you be part of the original control?
• Should you use conditional compilation?
• Do you have to output interfaces, thereby managing versions?
• Should you create separate "versionX" projects and link common project files?

Answer 1

I tried several different ways to do this.

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