Hi,
I consider the following as an issue rather close to the discussion in
the thread
Juan Manuel Macías. Fallback fonts in LaTeX export for non latin
scripts. Wed, 30 Aug 2023 08:25:53 +0000.
https://list.orgmode.org/878r9t7x7y....@posteo.net
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1042450
elpa-org: #+LANGUAGE: de-de is not working in LaTeX export. Debian Bug
report logs
I am unsure if the change was intentional.
#+language: de-de
#+latex_header: \usepackage[AUTO]{babel}
is exported to
\usepackage[ngerman]{babel}
% ...
\hypersetup{
% ...
pdflang={Ngerman}}
by Org-9.5 and as
\usepackage[]{babel}
% ...
\hypersetup{
% ...
pdflang={De-De}}
by Org-9.6. Similar user expectation should be had in mind during
planning of further changes.