1) The PVP is not written in RFC style: It is conversational and addresses the reader direction.

2) It's terms aren't those of RFC 2119.

3) The phrase "you should ensure" in section 3 was clearly meant that it was expected of the maintainer. Including upper bounds.

Now, if someone would like to have a go at re-writing the PVP in the style of an RFC, so that if PVP conformance is more rigorously defined, (which will surely explicitly reference RFC 2119), please write up a version (and a new thread) and we'll discuss it.

- Mark