It is generally not recommended to do distro (Debian) major version upgrades. In most cases it works well, perhaps some manual config adjustments required but nothing urgent. But in rare cases issues CAN be much larger. For this reason no distro would ever automate this upgrade, nor support it, neither we de.
If you want to take the risk, you can have a look to: https://dietpi.com/forum/t/qbittorrent-version-shipping-with-dietpi/2326/9