Missing entries in IANA IPP registry?

Piotr Pawliczek via ipp <[email protected]> Wed, 1 Oct 2025 13:06:26 -0700

Newsgroups	gmane.ietf.ipp
Message-ID	<CAOwDaofL1-7HqhboNcaj=xnQjU3Zj904aBsntKSck5h=YaM4Uw@mail.gmail.com>

Hello,

In both documents:
5101.1-2013 PWG Media Standardized Names 2.0 (MSN2)
and
5101.1-2023: PWG Media Standardized Names v2.1 (MSN)
I can see two media-type values that are not present in IANA IPP registry (
https://www.iana.org/assignments/ipp-registrations/ipp-registrations.xhtml):

   - envelope-colored
   - stationery-colored

Is this on purpose?

Best regards,
Piotr

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