Source: courier-unicode Severity: serious TLDR: Don't Breaks/Replaces libcourier-unicode1, it prevents install of at least maildrop (or upgrade).
libcourier-unicode4 breaks libcourier-unicode1 << 1.4-4. The archive currently has -3+b1, so they're not co-installable. This makes it impossible to (for example) install both Courier and maildrop. It looks like you planned to have 1.4-5 enter the archive — which would be co-installable. At least the package tracker says you uploaded that on Aug 7. I'm guessing it was ignored because you also uploaded 2.0-1 the same day (again according to the package tracker). I found a copy using snapshot.d.o, but it appears you changed the package name to libcourier-unicode3 to match the soversion. Normally desired, but that also means it won't satisfy the dependency from maildrop on -unicode1. There appears to be no reason for libcourier-unicode4 to Breaks/Replaces libcourier-unicode1. They have different soversions and no conflicting files. Dropping that Breaks/Replaces would fix the (presumably) unwanted conflict with maildrop. I think it's just maildrop broken by this. So probably not worth the effort to get 1.4-5 actually in to the archive (which would, I think, require uploading it built from a new source package). 1.4 will be dropped when maildrop's maintainers update their package. But even so, it'd be nice to drop the Breaks/Replaces unless there is actually a good reason to have it. -- System Information: Debian Release: buster/sid APT prefers unstable-debug APT policy: (500, 'unstable-debug'), (500, 'testing-debug'), (500, 'testing'), (200, 'unstable'), (150, 'stable'), (100, 'experimental'), (1, 'experimental-debug') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.12.0-2-amd64 (SMP w/8 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en_GB (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system)