Hi folks,
The "Specifications" section in the pypa.io developer's manual had fallen behind the process we've actually been using in recent times, so I've finally submitted a PR to bring it up to date: https://github.com/pypa/pypa.io/pull/19
General questions about the change are best asked on the list, while detailed comments on the specific wording in the PR are best submitted through GitHub.
Cheers, Nick.
P.S. See https://github.com/pypa/pypa.io/issues/11 for some additional background