OK, here is my "pure marketing" suggestions. I suggest that a release policy document be published on the site. For example, major version means architecture change (3->4), minor branch means functionality addition/change (4.2->4.5), and further "dots" mean bug fixed (4.5.0 -> 4.5.1). Something along these lines maybe (p.3)? That would help. And many thanks to everybody for the advice. I understand 4.5 is production qualtiy release, 4.6 will be bug fixing release, and 4.7 will have large changes to the core.
