the daemon reported:

Name of contribution: mhchem Author's name: Martin Hensel Package version: 2014-02-01 Location on CTAN: macros/latex/contrib/mhchem/ Summary description: for typesetting chemical formulae, chemical equations, H and P Statements, and Risk and Safety (R and S) Phrases License type: lppl

Announcement text given by the package's contributor:

2014-02-01 mhchem v3.15

• follow the IUPAC Red Book more closely (staggered superscripts)
• rewrote large parts using LaTeX3, needs package expl3
• added: ond{1}, ond{2}, ond{3} (because # cannot be used in all contexts)

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Announcement required: Yes

Users may view the package catalogue entry at http://www.ctan.org/pkg/mhchem or they may browse the package directory at http://mirror.ctan.org/macros/latex/contrib/mhchem/

thanks for the upload; i've installed the new version, and updated the catalogue repository.

Robin Fairbairns

For the CTAN team