Script remove-retired-packages checks which packages has been retired (removed) between current version of Fedora and VERSION’s version. When no paramters is passed then VERSION is set to current version minus one.
dnf(8), fedora-upgrade(8), https://docs.fedoraproject.org/en-US/package-maintainers/Package_Retirement_Process/
If you experience some problem, please report it at: https://github.com/xsuchy/fedora-upgrade/issues
Miroslav Suchý <firstname.lastname@example.org>