On 3/22/24 1:00 PM, Carsten Bormann wrote:
PRECIS was an attempt to provide a referenceable standard in this space, but it is dependent on the Unicode version and has stopped following Unicode at 6.3.0.
False. PRECIS, like IDNA2008, is version-agnostic with regard to
Unicode. (Unlike Stringprep before them.)
Its status is pretty much an expression of the problems listed above, except there was an attempt to register a small number of variants, thwarted by the need for constant maintenance.
It is true that new versions of Unicode need to be reviewed for their
impact on both IDNA2008 and PRECIS, but that's simple due diligence.
It's also true that we have not done as good a job of that due diligence
as we could have (discouraged in part by the IAB statement [1] issued in
2015), but RFC 9233 remedied that oversight for IDNA and we're working
on a similar Internet-Draft for PRECIS.
Peter
[1]
https://datatracker.ietf.org/doc/statement-iab-statement-on-identifiers-and-unicode-7-0-0/01/pdf/
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