Typical workflow of Fedora system-wide upgrade to the next releasever

fedora_upgrade.sh

#!/usr/bin/env bash

sudo dnf upgrade --refresh
sudo dnf install dnf-plugin-system-upgrade
sudo dnf system-upgrade download --releasever=37
sudo dnf system-upgrade reboot
sudo dnf install remove-retired-packages
remove-retired-packages
sudo dnf repoquery --unsatisfied
sudo dnf repoquery --duplicates
sudo dnf list extras
sudo dnf remove $(sudo dnf repoquery --extras --exclude=kernel,kernel-\*)
sudo dnf autoremove
sudo bash -c '
old_kernels=($(dnf repoquery --installonly --latest-limit=-1 -q))
if [ "${#old_kernels[@]}" -eq 0 ]; then
    echo "No old kernels found"
    exit 0
fi
if ! dnf remove "${old_kernels[@]}"; then
    echo "Failed to remove old kernels"
    exit 1
fi
echo "Removed old kernels"
exit 0'
sudo dnf clean all
sudo rpm --rebuilddb
sudo dnf distro-sync
sudo dnf distro-sync --allowerasing