[XeTeX] xelatex, hyperref, and new TeXLive

[maxwell]

We've downloaded and installed the new 2016 TeXLive distribution.  I was 
all set to be happy...but.  There seems to be an incompatibility between 
the new xelatex and the new hyperref package.  No matter what I do, I 
get the error msg:
----------------
! Package hyperref Error: Wrong DVI mode driver option `ps2pdf',
(hyperref)                because XeTeX is running.
----------------

We did not of course get this error with the TeXLive 2015 distribution.

Here's the minimal file to trigger this error (ok, I could take out the 
word "test", but it's pretty minimal :-)):
----------------
\documentclass{article}
\usepackage[dvipdfmx]{hyperref}
\begin{document}
test
\end{document}
----------------

I've tried telling hyperref
    [driverfallback=dvipdfm]
instead, and I've tried telling xelatex
     --output-driver=xdvipdfmx
and a bunch of other things, with no effect.

What do I yet lack?

    Mike Maxwell
    University of Maryland