I can second most of this. I haven't needed to dive into the source on Rails 3 at all, except for figuring out why some bit of backwards compatibility wasn't qu

I can second most of this. I haven't needed to dive into the source on Rails 3 at all, except for figuring out why some bit of backwards compatibility wasn't quite working. Considering the project was initially written on version 1.mumble.mumble, I haven't even had to do much of that.