On Thursday, Apple seeded the fifth beta of OS X 10.9.2 to developers for testing with a build number of 13C53. There doesn’t appear to be any major changes from the previous beta which was released earlier this month. Like the last build, Apple asks that developers focus on MB2, Mail, Messages, Graphics Drivers, VoiceOver and VPN. There have been many issues pertaining to Mail since the launch of OS X Mavericks, and Apple appears to be addressing problems with the software as soon as they arise.
In recent months, Apple has been proactive in addressing performance issues and bugs and releasing app updates for a number of individual apps in OS X Mavericks along with general improvements in iOS 7. Apple is expected to release iOS 7.1 next month, with a number of UI enhancements in Phone and other stock applications.
The company will likely release several more betas of OS X Mavericks v10.9.2 before releasing the final version to the public. The public release should be very soon, as Apple is expected to release a new version of OS X later this year.
OS X 10.9.2 beta 5 is now available via the Software Update feature in OS X as well as through the Dev Center.