Just in time for the weekend, Apple on Friday seeded the fourth OS X 10.9.3 beta to developers.

Coming just over a week since the third beta dropped, today's release - build 13D28 - is available now through the usual channels, the software update option in the Mac App Store, and as always, via the Mac Dev Center.

For now, little is known about the latest beta, except that Apple is pointing developers in a few key directions.

Apple is requesting that devs direct their focus, in particular, to Graphics Drivers and Audio. There are no known issues reported with the newest build.

Registered Mac developers are encouraged to check it out now. MMi will provide additional updates should any particularly noteworthy information emerge in the hours and days ahead.

Source: Apple