OS X Build 13B42

13.0.0 Darwin kernel- not updated.

Updated Intel graphics drivers If you use patched or modified drivers, you will need to re-apply changes to the updated drivers.

NVIDIA and AMD graphics drivers not updated

This update will replace your audio drivers. You will have to reinstall AppleHDA using MultiBeast before or after reboot If you use VoodooHDA, you will not need to make any modifications

Storage drivers not updated - TRIM patch persists upon reboot

Today Apple released 10.9.1, the first major update to OS X Mavericks. Update any supported system using the built-in Software Update functionality through the Mac App Store, or by using the standalone installer available from Apple.com.Be sure to back up any important data, and if possible clone your hard drive before applying the update. If you have any issues post-update, boot using UniBeast.Testing is now underway- this post will be updated. Good luck, and let us know how it goes! Report your results here.