Apple has released the first beta of OS X Mountain Lion 10.8.4 to third-party developers. “Please be aware that you will not be able to revert back to your previous system after updating,” warns Apple. “Please install this update on a system you are prepared to erase if necessary.”
The seed’s release notes don’t contain anything significant, but devs will surely find new stuff once they get to digging through the OS. 10.8.3 was released to the public a couple weeks ago after going through 13 beta revisions over a period of nearly 5 months.
It was February of last year when Apple unveiled Mountain Lion as the successor to Lion. Bets are on for what cat the next major OS X release will be named after.