Dear Maintainer,

Radicale 3 no longer ships /etc/radicale/logging.

However, the upgrade from radicale 2 to 3 does not properly clean up this
obsolete conffile:

$ adequate radicale
radicale: obsolete-conffile /etc/radicale/logging
$ dpkg-query -W -f='${Conffiles}\n' radicale | grep obsolete$
 /etc/radicale/logging 8b80eb58ed94b56dc4e1bbfecc5349f4 obsolete

Please use the dpkg-maintscript-helper support provided by
dh_installdeb to remove these obsolete conffiles on upgrade.

https://www.debian.org/doc/debian-policy/ch-files.html#s-config-files
https://manpages.debian.org/man/1/dh_installdeb

Thanks for your work,