I get the same error with texlive 2015 so I don't think there is any recent change (since support for hyperref moved to github) that has changed this, with texlive 2015:
(/usr/local/texlive/2015/texmf-dist/tex/latex/hyperref/pd1enc.def) (/usr/local/texlive/2015/texmf-dist/tex/latex/latexconfig/hyperref.cfg) ! Package hyperref Error: Wrong DVI mode driver option `dvipdfmx', (hyperref) because XeTeX is running. David -------------------------------------------------- Subscriptions, Archive, and List information, etc.: http://tug.org/mailman/listinfo/xetex