[Mister L]

Originally Posted by DiapDealer

Just leaving this here because it seems somewhat relevant:

http://idpf.org/forum/topic-1729

Thanks, very interesting.

The more I think about this the more it seems to me that a new uuid should be generated as a matter of course, because converting from epub2 to epub3 alone is a big enough change that, I think, it cannot be considered the "same" file anymore.