Clemens Niederberger submitted an update to the
chemnum
package.
Version number: 1.1c 2016-01-30 License type: lppl1.3
Summary description: A method of numbering chemical compounds
Announcement text: ---------------------------------------------------------------------- adapt to deprecation of expl3's prop_get:Nn (=> prop_item:Nn) ----------------------------------------------------------------------
This package is located at http://mirror.ctan.org/macros/latex/contrib/chemnum
More information is at http://www.ctan.org/pkg/chemnum
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Thanks for the upload.
For the CTAN Team Manfred Lotz