by ben reynolds.
I share the agony, but you really want to go to something like 2.2 and then upgrade from there.
If you are using assignment, pay attention to the change/upgrade of assignment in 2.2 and after. Assignments will disappear if you don't use the upgrade tool. They will also drop out of place once you use the upgrade tool. They drop to the bottom of each section. Assignments need to be re-placed. After the next upgrade, they'll be OK.