This is about Rawhide (and some parts apply to F23 and older, too). Again there are zombie packages, which are obsoleted by other packages, but still live on and even have survived mass-rebuilds. Superfluous and can lead to breakage (see bottom), too. "Dead" = a dead.package file in dist git exists, but builds of the package are still found in the repo(s). Package has not been retired fully yet. "Undead" = no dead.package file in dist git found. Dead and all builds obsoleted: ------------------------------ python-twisted-conch obsoleted by: python-twisted python-twisted-lore obsoleted by: python-twisted python-twisted-mail obsoleted by: python-twisted python-twisted-names obsoleted by: python-twisted python-twisted-news obsoleted by: python-twisted python-twisted-runner obsoleted by: python-twisted python-twisted-words obsoleted by: python-twisted Undead and all builds obsoleted: -------------------------------- kde-plasma-milou obsoleted by: plasma-milou kwallet obsoleted by: kwalletmanager liblxqt-mount obsoleted by: lxqt-panel lxshortcut obsoleted by: libfm min-metadata-service obsoleted by: min-cloud-agent osbs obsoleted by: osbs-client php-channel-deepend obsoleted by: php-deepend-Mockery php-channel-symfony2 obsoleted by: php-symfony plasmate obsoleted by: plasma-sdk python-XStatic-Angular-Cookies obsoleted by: python-XStatic-Angular zeroinstall-injector obsoleted by: 0install Examples of how it can break: 1) A mass-rebuilds bumps the Release tag of a semi-dead package, and it manages to escape the Obsoletes tag in another package. Especially not funny, if it were software with security issues. 2) Package is listed as being available in the repo, but cannot be installed: # dnf list python-twisted-conch Available Packages python-twisted-conch.x86_64 12.2.0-4.fc21 fedora # dnf install python-twisted-conch Error: package python-twisted-conch-12.2.0-4.fc21.x86_64 requires python-twisted-core >= 12.2.0, but none of the providers can be installed (try to add '--allowerasing' to command line to replace conflicting packages) # repoquery --whatobsoletes python-twisted-conch python-twisted-0:15.1.0-2.fc23.x86_64 -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx http://lists.fedoraproject.org/admin/lists/devel@xxxxxxxxxxxxxxxxxxxxxxx