Modifying/replacing class in .NET binary

[tusk]

Originally Posted by jonwil

Or any other way to modify the code?

Using some of the the above tools (dnSpy for exemple), you can directly change the code in the binary.
This might be in IL, but it is not too complicated to learn (for small patches it is usually ok)

I wonder if new versions are able to change in .net directly (thus builing the IL code automatically. Last time i tried, dnSpy had some issues with this and changing the IL code directly was the way to go...