Would hope that this would be addressed with a future update in the coming weeks, but the fact that the cards still appear to be working well with the stock drivers is a MAJOR plus. Seems like it's about a 2-3 week process from the time an update is released until new web drivers become available, even if it's not directly available in the most public way.
Would suggest that anyone looking to update CLONE their system drive prior to updating. It's simply the easiest way to quickly restore in case of an issue that you may encounter after the update.
For what it's worth, the GTX 680 "for Mac" version has (once again) been hard to find stock of in recent weeks. The usual retailers are backordered or simply not taking orders at this time. Most are saying 2-3 weeks, but Amazon is listed at 1-2 months.