What about telling us what you want to upgrade? Are you looking for a "better" looking interface ? Try Sublime Text, Atom or Brackets. Are you looking for bet

What about telling us what you want to upgrade? Are you looking for a "better" looking interface ? Try Sublime Text, Atom or Brackets. Are you looking for better $LANGUAGE support? Try any $LANGUAGE-specific IDE. Are you looking for better scriptability? Try Emacs, possibly with evil-mode. Are you looking for a better editing experience? There's nowhere to look.