iTunes 9.2.1 has just arrived in Software Update, bringing a host of bug fixes and new features.
According to the update, the new version disables older versions of incompatible third-party plugins, addresses minor issues, with dragging and dropping items, addresses a performance issue when doing a first sync to some devices, addresses an issue upgrading to IOS4 on an iPhone or iPod touch with encrypted backups, and fixes some stability and performance issues.
The new features and improvements include syncing with iPhone 4, synchronization and reading books on iPhone or iPod touch with iOS 4 and iBooks 1.1, organizing and syncing PDF documents as books for reading in iBooks 1.1, organizing apps on your iOS 4 home screens using iTunes, faster backups while syncing iPhone and iPod touch with iOS 4, and album artwork improvements to make artwork appear more quickly when exploring the library.
