I would like to suggest a couple of additions to the release notes for this. I just upgraded an old ASP.NET site.
1) LLBLGenProDataSource2 has been refactored to a new assembly. Took me a few minutes to figure this out, plus when I ran the app it failed because I had a control tag in web.config and needed to update that, as well.
2) The format of the connection string has changed. I remembered that the designer generates this into a config file in the DAL project, and did a quick search and saw the new format, but again, didn't realize I needed to do this until running the app and having it fail.
Thanks
Jim