geometry package for Maxima?



I have two questions.
1)  Does there exist a geometry package for Maxima that might illustrate
properties of plane triangles, and platonic solids, for instance?
2)  On the internet page 'maxima.sourceforge.net/releaseplans' there
is some description that "development releases will have odd minor
version numbers".  Is that policy still in practice?  The present
release, soon to be in turn superseded, seems considerably beyond the
point "we are here" in that diagram.  It would be helpful to interested
parties for this page to be maintained as current as other aspects of
Maxima.
       J. F. Ogilvie