Will .NET 4.5 introduce a new version of the CLR?

Question

In the past not every new version of .NET came with a new version of the CLR. I know .NET 1.0, 1.1, 2.0 and 4.0 did, but .NET 3.0 and 3.5 did not.

Will .NET 4.5 intr

Answer 1

No, it is still version 4.0.30319. The new revision of clr.dll and friends will replace the existing ones on your machine. Same scheme as used in .NET 3.0, 3.5 and 3.5SP1. Checking to see if 4.5 is installed requires the same approach as those versions, you check the registry.