Is it worth upgrading to C# 4.0 [duplicate]

Question

Possible Duplicate:
Why should I upgrade to c# 4.0?

Our projects are currently all C# 3. If we dont have a specific requirement for features that C# 4 provides, would there be any other reasons for us to upgrade? Thanks.

Edit

There seems to be more of an advantage with using the new CLR and not just the new language features.

Answer 1

I personally don't feel that there are great language enhancements between C#3 and C#4 if you're targeting the same framework (2.0-3.5).

However, if you move to .NET 4 CLR as well, I think there are all sorts of benefits in the runtime you can take advantage of. My favorite feature is the parallel task library.