The one that hit hard was when they changed the exporters (I believe it was the change from 7 to 8). Documentation was limited, but it included gems reminding the reader that it's a lot of work to write documentation, but rest assured that it would eventually happen. Nothing was automated and frankly, I couldn't even figure out a non-automated way to update the files, as I could not find a replacement for some of the functionality I had been using.