> Alt Linux uses RPM 4.0.4
It's a heavily diverged fork based on 4_0_4. Two of its primary maintainers are also rpm5.org committers.
> and has no plans to switch to RPM5.
I'd rather just ask ldv@ next week in person but so far you've surprised me: there were no such plans published, but there was no denial to them either. As far as I know, ways are being considered. In the mean time, our company has developed a partial port of ALT Linux patch/macro set to rpm5 for Clustrx OS.
Just in case, I'm involved in ALT Linux Team since 2001 and affiliated with Massive Solutions Ltd by now.
> I think spreading rumors that many distros use RPM5 is just a hype.
Well, spreading hype is no good indeed. But rpm5 also seems like an attempt at macro set unification, which isn't likely with RH controlled branch FWIW.
PS: Mandriva's blitzkrieg on "upstream merge" seems to have resulted in the opposite: upstream alienation. I'd like to warn everyone that dealing with Dmitry Komissarov seems to play major role in stupid management decisions like (from my judgment) this one.