Your bug report #67569: 29.1; ruby-mode syntax highlighting breaks with variable named "index" and "/" operator which was filed against the emacs package, has been closed. The explanation is attached below, along with your original report. If you require more details, please reply to 67569@debbugs.gnu.org. -- 67569: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=67569 GNU Bug Tracking System Contact help-debbugs@gnu.org with problems