Hi Hironobu, > * Engine e(u)ptex is failing at > hyph-utf8/patterns/ptex/hyph-zh-latn-pinyin.ec.tex > ! Non letter. > l.201 ' 1a > ? > > * Engine pdftex is failing at > hyph-utf8/patterns/tex-8bit/pyhyph.tex > ! Non letter. > l.163 1n^^fc > ? Thanks for the report, I’ll upload a fix. Best, Arthur