82: How do I update Emacs to the latest version? Follow the instructions in question 81. Emacs 19 places nearly everything in version-specific directories (e.g., /usr/local/lib/emacs/19.28), so the only files that can be overwritten when installing a new release are /usr/local/bin/emacs and the Emacs Info documentation in /usr/local/info. Back up these files before you install a new release, and you shouldn't have too much trouble.