Apple recently released the latest version of its upcoming OS X maintenance update, asking beta testers to concentrate on graphics drivers, audio, Safari and iTunes contacts and calendar syncing over USB. According to people who are familiar with the latest OS X Mavericks 10.9.3 beta, dubbed build 13D38, Apple is again requesting developers focus on main graphics drivers, audio enhancements and Safari, three categories that have been areas of concern since the first 10.9.3 beta.

The updated build comes one week after the latest version and contains no known issues. Apple specifically

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