Urpmi to dnf on upgrade

Hi,
I am about to upgrade from Mageia 8 to Mageia 9 and would also like to change from urpmi to dnf for package handling.
Can this be done as part of the upgrade process, or can it only be done on a fresh install due to the problems that can be caused by orphaned packages not being compatible between urpmi and dnf ?
I am about to upgrade from Mageia 8 to Mageia 9 and would also like to change from urpmi to dnf for package handling.
Can this be done as part of the upgrade process, or can it only be done on a fresh install due to the problems that can be caused by orphaned packages not being compatible between urpmi and dnf ?