The primary criticism of the GPLv3, from what I know, is that it's backwards incompatible with the GPLv2, creating practical problems with code sharing between

The primary criticism of the GPLv3, from what I know, is that it's backwards incompatible with the GPLv2, creating practical problems with code sharing between v2/v3 projects. That is to say, the GPL is no longer a single "universal receiver", it's been forked. Then there's disagreements as to whether things like Tivoization are really an issue, as Linus Torvalds for instance doesn't think it is and so sticks with the GPLv2. Rob Landley talks about this in an interview here, among other interesting bits about computing history: https://linuxluddites.com/shows/episode-11/ https://linuxluddites.com/shows/episode-11/