Framework Design Studio is a nice free tool that can be used by Architect/Designer/Developers to compare two versions of the .NET Assembly and check the differences.
It has following features.
- Listing APIs exposed from a managed code assembly
- Comparing APIs in two versions of an assembly
- Reviewing APIs, commenting on API design, and filing review bugs to a defect database (through a configurable plug-in)
- Exporting API review comments to a Microsoft Word document
You can download this tool from http://code.msdn.microsoft.com/fds
Namastee!