it occurred to me that new features are not always mentioned or posted
to the users mailing list. (As opposed to the discussion on the
So, first of all let me remind you of the changelog, in case you're
One example is that in the latest released version 2021d there's a new
function lpsolve(), which --quoting from the changelog-- "supports
linear programming via the lpsolve library". I guess that could be
useful for a number of people. There's an entire pdf help document for
that available under the Help menu (gretl + lpsolve).