Daniel Martín writes: > Jim Porter writes: > > There's already a command in Emacs for that: M-x customize-changed first > asks for a version of Emacs (defaults to the previous one) and then > shows you every customization group, user option or face that is new or > its default has changed. So I think the wizard could reuse this command > or simply advertise it. Thanks, I didn't know that existed, that's very useful. I think this could definitely be useful in the wizard. The wizard could store the current Emacs version used to generate the configuration, then use that stored value as a base for this command in order to show all new options that a user can now cutomise. The wizard could also compare the current Emacs version to this stored version and display a button (with large, friendly letters of course) to trigger this command.