[IPP] Questions on Specification History

[wamwagner at comcast.net]

Looking through the IPP Published Work list on the PWG website, I noticed that 5100.4 and 5100.10 are not listed. 5100.4 (Override Attributes for Documents and  Pages) is well marked as obsolete on the FTP site. 5100.10 (Internet Printing Protocol Version 2.0) is not. 

1. 5100.6 (Page Overrides) apparently obsoletes 5100.4 . It is not immediately clear whether Document Overrides are still supported.
2. The relationship between 5100.10 and 5100.12 (IPP Version 2.0, 2.1, and 2.2) does not appear to be spelled out. One would expect that .12 supersedes .10 . Is this correct? If so, should this not be indicated somewhere?
Thanks
Bill Wagner
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