I am creating a LaTeX doc. using \documentclass{amsart}. When I run it, the year appears in AMS subject classification is 1991. Is it possible to change it to 2010? Many thanks for your help.

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    A comment on an answer asked whether 2020 had been added yet, since the 2020 MSC has been released. If you are submitting to the AMS, 2020 will be supported there, but a public update of amsart hasn't yet been released. The AMS support group is taking the opportunity to see whether they want to make any other changes at this time. Also, disruptions on account of the current COVID-19 pandemic affect this as well. (Sent on behalf of the AMS technical group.) Mar 19, 2020 at 17:56

1 Answer 1


There is an optional argument to the \subjclass command, which you may specify to be 2010.

\subjclass[2010]{Primary: 53C26}

Note that there are internal checks on the year, so the only valid values are 1991, 2000 and 2010. Presumably this will be updated when the next subject classification is released for 2020.

Sample output



\title{A title}
\author{A. Author}
\subjclass[2010]{Primary: 53C26}


The 2020 option was added with version [2020/05/29 v2.20.6].

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    to confirm -- it is definitely planned to add an option [2020] as soon as that version of the subject classification exists. (work has already begun.) Jan 31, 2017 at 15:19
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    @barbarabeeton, any news on the 2020 option?
    – Sigur
    Mar 18, 2020 at 22:11
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    @Sigur -- I wish! No word yet. I'll inquire. Mar 18, 2020 at 22:12
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    @barbarabeeton, thanks for attention. I'm going to send a final version of a paper and I'd like to use it. Hopefully the editors will take care of it, specially because I used the 2020 msc.
    – Sigur
    Mar 18, 2020 at 22:13
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    @barbarabeeton, for a while, after reading the class file, I am using on preamble of my file the command \@namedef{subjclassname@2020}{\textup{2020} Mathematics Subject Classification} and it works well.
    – Sigur
    Mar 18, 2020 at 22:31

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