Apple released iTunes 10.2.1 Tuesday, an update intended to prep users for the imminent release of iOS 4.3. The patch notes make no mention of other changes.
Said patch notes:
What’s new in iTunes 10.2.1
- Sync with your iPhone, iPad, or iPod touch with iOS 4.3.
- Improved Home Sharing. Browse and play from your iTunes libraries with Home Sharing on any iPhone, iPad, or iPod touch with iOS 4.3.
The update is a 77.5MB download for Snow Leopard, and you can find it in Software Update. Windows users can find it in the Apple Updater utility from within iTunes.