If you have been and continue to be using pre-release versions of .NET 2.0, Kit George has pointed to this download which will list the APIs that are in existing bits that will not make it to the final RTM version. Definitely pay attention to this!

Clarification for those who may need it: These are NOT v1.x APIs, but APIs that are new to .NET 2.0 that have been in the current beta and other pre-release bits and will probably be in the Beta 2.0 as well. But they won't make it to the final release.

http://www.AcehAid.org