Dear Lorna,
I was thinking I had seen a message that Jonathan had updated XeTeX to use the newest Graphite engine and that someone else had built a Windows binary.
XeTeX win32 in TeX Live 2016 pretest is built with Graphite2 1.3.8. Best, Akira -------------------------------------------------- Subscriptions, Archive, and List information, etc.: http://tug.org/mailman/listinfo/xetex