I just saw some mail internally where folks were looking for a list of the breaking changes between .NET Framework 1.1 and 2.0…   As you likely know we work *very* hard to ensure that your V1.1 apps will this just work on 2.0, but none-the-less, this doc is likely worth a quick scan as you migrate to 2.0

http://msdn.microsoft.com/netframework/programming/breakingchanges/ 

 

Update (4/2009):

More details here:  Migrating from .NET Framework v1.x to Visual Studio 2008

 

The updated references are:

·         Microsoft .NET Framework 1.1 and 2.0 Compatibility
http://msdn.microsoft.com/en-gb/library/ms994381.aspx

·         Compatibility Testing Scenarios
http://msdn.microsoft.com/en-gb/library/ms994387.aspx

·         List of Breaking Changes
http://msdn.microsoft.com/en-gb/library/ms994364.aspx

·         Runtime Breaking Changes
http://msdn.microsoft.com/en-gb/netframework/aa497239.aspx

·         Design-Time Breaking Changes
http://msdn.microsoft.com/en-gb/netframework/aa570327.aspx

·         Application compatibility MSDN forum
http://forums.microsoft.com/msdn/default.aspx?siteid=1