There's always that risk with upgrading any piece of
software. Not too many people who support the forum will have been
working with 9.2 for a long time so all we can advise is what posts
we see. Nothing I can think of but then again, not too many people
generally who go so many versions between upgrades. That's not
meant as any criticism, just plain fact.
Take a backup and go for it. Otherwise, why buy it in the