[tex-hyphen] German patterns

[Guenter Milde]

Dear Hans Hagen, dear Hyphenationers,

On 2023-08-22, Hans Hagen wrote:
> On 8/22/2023 1:11 PM, Keno Wehr wrote:
>> The German patterns of hyph-utf8 are outdated (2021-02-26). Newer 
>> patterns are available in dehyph-exptl (2023-03-06).
>> Please update!

> afaik on ctan they are tagged experimental
> but even then they would become
>
>    hyph-de-2023.tex
>
> once officially declared stable; 
> they can't automatically replace the 
> current ones without announcement (compatibility reasons)

Actually, the German patterns in hyph-utf8 are the maintained versions from
the "increasingly misnamed" *dehyph-exptl* package.

They were regularely updated to include fixes and additons, see, e.g.,
https://github.com/hyphenation/tex-hyphen/commits/master/hyph-utf8/tex/generic/hyph-utf8/patterns/tex/hyph-de-1901.tex


While "de-1901" and "de-1996" are official language tags, *de-2023* would
be against the BCP47 rules (home-made sub-tags must be preceded by -x).


The "Trennmustermannschaft" is constantly improving the dehyph-exptl
patterns for both, old (de-1901) and "new" (de-1996) orthography,
https://repo.or.cz/wortliste.git. Whenever there is a critical mass of
improvements and fixes, we release a new package version on CTAN.

The 2023 update does not reflect a change in orthography, so it would
be wrong to replace one of hyph-de-1901.tex or hyph-de-1996.tex with a
hyph-de-2023.tex.

If for some reason, the patterns in hyph-utf8 are frozen since 2022,
versioned patterns could become "hyph-*-19..-x-2023-03-06.tex".

Sincerely

Günter Milde