Undo tree visualize

It’s one of those things I could maybe use more often…

Install with M-x package-install RET undo-tree

To turn on timestamps put this in your .emacs.d config.

(setq undo-tree-visualizer-timestamps t)

BTW undo-tree-visualizer is part of the standard Spacemacs config, timestamps are already switched on, with key bindings SPC a u to launch it.