Since github provides a nice and clean way to get the latest version from api, maybe add a version check on update? Simply printing something along the lines of an orang text line under the puddler ascii reading something like.
Version (Running Version), latest release (Latest upstream release)

Bonus points for eventually adding U as a command that shows up in the list to update from github directly, but I am not sure that's something you can easily do, just letting users know there's a new version and making the U prompt take them to the latest release is probably good enough.