I am using the achemso package to typeset a manuscript in the American Chemical Society format. Near the end of the package documentation for the achemso package, there is a section, Change History (section 8), that lists the versions of achemso and what was modified in each version. However, that listing only includes the version numbers, not the (approximate) dates, or even just the years, when each version was released.

Is there a listing somewhere of the (approximate) dates that each version of achemso was released?

Reason for asking question

The reason that I have asked the above question is that I am using MiKTeX on Windows, but my boss uses TeXShop on Mac. In MiKTeX, packages are automatically downloaded if needed. Thus, the first time I compiled a file with \usepackage{achemso}, MiKTeX automatically downloaded and installed the achemso package.

I am not familiar with TeXShop or Mac, but it seems that in TeXShop packages are not installed automatically. It seems that in that system, one needs to periodically "update" TeXShop to obtain the latest ctan packages such as achemso. My boss knows the date of release of the TeXShop version that he has on his computer, but he doesn't know the version of achemso that he has in his current TeXShop. So I am trying to "work backwards" and try to determine the approximate version of achemso that he has in his current TeXShop. For example, if his TeXShop is dated May 2012, then perhaps it is reasonable to guess that at least the 2011 version of achemso is included. With this guess of 2011, I would like to find out from the Change History what features he probably has in his distribution of achemso.

  • 2
    You can try the chat. Joseph's a regular visitor :)
    – cgnieder
    Nov 9, 2013 at 19:13
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    also take a look at the mercurial repo history: ctanhg.scharrer-online.de/hg/achemso
    – d-cmst
    Nov 9, 2013 at 19:16
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    Could you be more specific as to your requirements? There are a lot of versions, and while I can list all of them from the development system, this looks like a lot of work. I assume there is something else you are really after.
    – Joseph Wright
    Nov 9, 2013 at 20:04
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    Besides the fact that TeXshop only is an editor and no TeX distribution: your boss could add \listfiles to his preamble, compile, and then look in the log file if he wants to find out the version of achemso he uses...
    – cgnieder
    Nov 10, 2013 at 16:43
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    If he's on OSX the distribution is probably MacTeX.
    – You
    Nov 10, 2013 at 17:02

1 Answer 1


Here you are: https://www.ctan.org/ctan-ann/pkg/achemso. It's not listing the version numbers beside the dates, but you can can count back from the last.

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