[
{ type: upgrade
  maximum_version: "28.0.50.20210302,2"
  message: <<EOM
If you get the error

    Symbol's value as variable is void: minor-modes

rebuild the offending Emacs packages.

See https://lists.gnu.org/archive/html/emacs-devel/2021-02/msg01164.html
for details.
EOM
}
]