Hugo Espuny has been working hard to prepare the Drupal 4.1.0 Debian package which is now part of Debian's unstable distribution (sid) from where, hopefully, it will bubble up to the stable distribution (woody). Note that the old Drupal 4.0.0 can be found in Debian's testing distribution (sarge).

Drupal developers will also be interested in keeping an eye on the the bug reports reported through the official Debian channels.