Apple has seeded a new build of the OS X Mavericks Golden Master to developers, a little more than two weeks after the first GM seed



From MacRumors:

According to 9to5Mac, the build is only available for users performing a fresh install of Mavericks, with some users having luck re-installing the new GM over the prior version. The prior GM had a build number of 13A598, while the new release is build 13A603.

  Apple Seeds New Build of OS X Mavericks Golden Master