the maximum characters option is in category bits in in rc 3 but on another one in rc4.... the upgrade didn't change that.. its no problem but it might be a bug or not might be a bug in the upgrade script but w/e thought I'd just put I'd just forward.
You're right, that should still be listed with the category bit options. Moving this to the bugs forum so we can get it moved back to the right place in 1.0.0.