If you're a DotNetNuke user, certainly you know that the 1st of November is an important date: the new version 3 that we're waiting for will be out!
I've seen some tests of Beta versions and what I can say is that it will be a big improvement on features and design. The Working Environment is wonderful and more clear and the new Draggable Modules feature is one the best things I've ever see on a website. 
So, if you're using previous versions of DNN, I think that a migration is necessary...
I have a website based on the DNN 2.1.2. platform and I absolutely want a migration to the new version, but at this point some questions are alerting me:
- I know that some custom modules will not work correctly with the new version, due to the new user and security management expecially, but a module that don't interact with the portal security or users will continue to work correctly?
- My personal possible biggest problem...
a DNN 2.1.2 skin will continue to work correctly on the new version 3? I hope so...
I hope on an easy migration and I hope also on performance improvements, expecially on DNN startup and initialization.