"As you could see it seems that's some kind of "status-quo" for a while regarding SMath. I do not know what is going on.
However, if you would like to use Maxima plugin I think you should use at the moment the unofficial build by Martin Kraska - SMath with Maxima ".
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I appreciate your advice, but for clients/team users, we just want the latest official version.
Up till now, Smath w/o Maxima or crippled Maxima is OK.
Thanks Radovan.