>> grep swiss `kpsewhich language.dat`
>> swissgerman loadhyph-de-ch-1901.tex
> OK, then all is well and
Maybe I misunderstand something, but I understand this line displays the "traditional" Swiss German patterns (from hyphen-german), while I was looking for the Swiss German patterns from your experimental project, i.e. gswiss-x-latest. I thought these are different, just like german-x-latest is different from loadhyph-de-1901.tex.
Jürgen
