debspawn (0.4.2-1) unstable; urgency=medium

  Due to a change in how UIDs are assigned to the build user in a container,
  images created with an older version of debspawn will have to be updated
  before they can be used for building packages again.
  You can update all images automatically in one go by running
  `debspawn maintain --update-all`.

 -- Matthias Klumpp <mak@debian.org>  Mon, 24 May 2021 22:48:45 +0200