Your bug report

#41400: Current biber version is incompatible with biblatex

which was filed against the guix package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 41400@debbugs.gnu.org.

-- 
41400: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=41400
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