Homepage: https://github.com/emacsorphanage/undohist
Author: MATSUYAMA Tomohiro
Updated:
Persistent undo history for GNU Emacs
This extension provides a way to use undo history of individual file buffers persistently. Write the following code to your .emacs: (require 'undohist) (undohist-initialize) Now you can record and recover undohist by typing C-x C-s (save-buffer) an C-x C-f (find-file). And then type C-/ (undo).