Hi,
I've tagged version-5_21_1 in CVS and built rpm's and posted
the rpms and source code to the Sourceforge file manager.
http://sourceforge.net/projects/maxima/file or thereabouts.
In version some bugs are fixed, including a plotting bug and
the is(f("x") > 0) => Lisp error bug.
I'm working on a change log. Sorry, I haven't finished it yet.
If someone can build a Windows installer that would be awesome.
If there aren't too many problems with this version,
I;ll make a general announcement.
hope this helps
Robert Dodier