Package: rdiff-backup Version: 2.2.2-1 The version of rdiff-backup in Bookworm is not backwards compatible with the version in Debian Bullseye (2.0.5-2)
Problem addressed in upstream version 2.5.0 or with this diff: https://github.com/rdiff-backup/rdiff-backup/commit/a2735047ea19ca05b219d26f4731ce9ec77620f3
