#post-id: 5320-02-00
#original-date: 18.02.2015 Wed
#original-time: 2:00 AM
#original-day:  5320
#original-host: WinXP Home SP3 (Build 2600)

Is this really a new feature?

In C#, Yes. However support for this in IL was already present and VB.NET already had this feature. Even F# utilized this with its exception pattern matching.

http://www.volatileread.com/Wiki/Index?id=1087