OS X Mavericks 10.9.3 Build 13D55 (Pre-Release) Download Available
The ninth build of Mac OS X 10.9.3 is now available for download but it seems to be paid up developers only.
Build 13D55 (Pre-Release) is the 9th beta release of mavericks but to get it you'll need to be a paid up member and not just on the AppleSeed program.
There's not much to talk about in the way of changes or major features, the build now supports 4k monitors and the ability to sync sensitive info and iTunes when it's released of the planet at large.
In the meantime testers are being asked to keep focusing their collective attention on graphics drivers audio Safari mail and contacts and calendar sync over USB in iTunes