Bundling GNU ELPA packages with Emacs - what are we missing?
In Bug#39553, we discussed what is missing to bundle packages from GNU
ELPA with Emacs releases (i.e. in the tarball). It is not clear (to me
at least) what is currently stopping us from doing that.
One thing I noted is that `M-x list-packages U' doesn't mark built-in
packages for upgrading even when there is a newer version available from
GNU ELPA. Perhaps that's by design? If not, it just sounds like a bug