Sure, a call of
maxima --version
returns 
Maxima 5.47.0

On Wed, Nov 13, 2024 at 4:10 AM Ihor Radchenko <yantar92@posteo.net> wrote:
Benjamin McMillan <mcmillanbb@gmail.com> writes:

> The remaining unexpected fails are mostly maxima tests.
> I do have some version of maxima installed, but never use it, so no idea if
> it is integrated into emacs (and (featurep 'ob-maxima) returns nil).

May you check the maxima version?

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