Unfortunately, Apple recommends that those affected by the encrypted disk bug install this security update, then format and restore their drive. This applies mostly to those who think that there’s a chance that their disk password may have been exposed — I don’t set password hints, so this bug didn’t affect me. But if you’re one of the unlucky ones who are affected, you know how you’ll be spending your weekend.
I still want to know how a bug like the latter bypassed quality control checks and a multi-month developer beta, though. It’s not confidence-inspiring.