I have downloaded the latest protocol and lpd documents to:
ftp://ftp.pwg.org/pub/pwg/ipp/new_PRO
The documents are:
ipp-pro-971219.doc MS Word Version 6 with no revisions
ipp-pro-971219.txt text no revisions
ipp-pro-971219-rev.doc MS Word Version 6 with revisions
ipp-lpd-971219.doc MS Word Version 6 with no revisions
ipp-lpd-971219.txt text with no revisions
ipp-lpd-971219-rev.doc MS Word Version 6 with revisions
One issue about printer-uri versus printer-tls-uri came up during
editing. It will be in a separate email.