LATIN CAPITAL LETTER SHARP S officially recognized

Philippe Verdy via Unicode unicode at
Fri Jun 30 12:02:31 CDT 2017

True but this only applies to "simple case mappings" (those in the main
datatase), not to extended mappings (which are locale dependant, such as
mappings for dotted and undotted i in Turkish).

So the extended mappings can perfectly be changed for German: they are not
part of the stability policy and designed to be extensible. And this is
where you find the existing mapping from ß to SS (lossy case conversion),
that will change to ẞ (non lossy case conversion).

2017-06-30 18:48 GMT+02:00 Mathias Bynens via Unicode <unicode at>:

> On Fri, Jun 30, 2017 at 5:34 PM, Michael Everson via Unicode
> <unicode at> wrote:
> >
> > It would be sensible to case-map ß to ẞ however.
> I’m hoping this can happen — converting ß to SS is lossy, so mapping
> to ẞ would be far superior.
> However, <>
> says:
> “If two characters form a case pair in a version of Unicode, they will
> remain a case pair in each subsequent version of Unicode.
> If two characters do not form a case pair in a version of Unicode,
> they will never become a case pair in any subsequent version of
> Unicode.”
> ��
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