Apple just released iTunes 9.2.1, which mostly focuses on improving some incompatibilities and killing some bugs. Here’s the rundown:

• Disables older versions of some incompatible third-party plug-ins
• Addresses minor issues with dragging and dropping items
• Addresses a performance issue when first syncing to some devices with iTunes 9.2
• Addresses an issue upgrading to iOS 4 on an iPhone or iPod touch with encrypted back-ups
• Addresses other issues that improve stability and performance

Fire up Software Update and grab it now!