Apple released iTunes 11.1.2 on Tuesday to address compatibility issues with the just released OS X Mavericks for the Mac. Apple released the new OS as a free upgrade on Tuesday following the introduction of new iPad models and updated MacBook Pros.
iTunes 11.1.2 improves OS X Mavericks support
According to Apple's slim release notes, the 11.1.2 update also added Hebrew and Arabic support, and fixed a few bugs.
iTunes 11.1.2 is free and available for download at Apple's iTunes website. The update will also show up in your Mac's Software Update application.