Will I have to change my Invoice Prefix for 2012?

Hi Guys

I already know the answer to this question, but i thought I would put it down here anyway as a lot of opencart users may forget to update their invoice prefix for their own carts or forget to update clients sites, if they assist maintaining them

My situation is most clients, really are not aware of where this is changed, even though i do show them, so i end up having to trail through them all and change them, not hard!

So just thought this was worthwhile putting this point down today, mods if you feel my post is pointless please delete it.