Apple seeds fifth OS X 10.8.4 beta with no known issues

The newest build comes one week after the previous 12E36 build was pushed out, keeping with Apple's weekly release schedule.

As with the most recent seeds, Apple is asking developers to focus on Wi-Fi, Graphics Drivers and Safari.

In the third build of the upcoming maintenance update, a line of code was discovered pointing to the possible inclusion of speedy 802.11ac Wi-Fi in future Macs.

The most current update is available through Software Update in the Mac App Store and Apple's Developer Page.