Version 3.6.1 of package Which-Key has just been released in GNU ELPA. You can now find it in M-x list-packages RET.
Which-Key describes itself as: ====================================== Display available keybindings in popup ====================================== More at https://elpa.gnu.org/packages/which-key.html ## Summary: The `which-key' mode displays the key bindings following your currently entered incomplete command (a prefix) in a popup. For example, after enabling the minor mode if you enter C-x and wait for the default of 1 second the minibuffer will expand with all of the available key bindings that follow C-x (or as many as space allows given your settings). ## Recent NEWS: [Not provided 🙁]
