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    Answers and rating deltas for
    Why .NET 4 variance for generic type arguments not also for classes?
| Author | Votes | Δ | 
|---|---|---|
| Joe Albahari | 8 | +2.99 | 
| Ian Ringrose | 2 | -0.37 | 
Last visited: Sep 14, 2014, 5:07:29 AM