I don't accept this answer. There was 5.0, released officially only in German at TAG. It was released under deadline pressure for the show and there were a lot of bugs. 5.01 was released on the Internet and there have been no fixes or changes for it (although they certainly are needed). If some mag released something different that they called 5.01 then it's a huge disservice to the community to suggest that 5.01 was released this way. I have never heard of such a magazine release though and doubt that it happened.