iTunes 9.2.1 提供了多項重要的錯誤修正,包含:
• 解決拖放項目時的次要問題
• 解決首次使用 iTunes 9.2 同步至部分裝置時的執行效能問題
• 解決使用加密備份在 iPhone 或 iPod touch 上升級至 iOS 4 時的問題
• 解決其他問題以增進穩定性和執行效能
iBooks 1.1.1 提供了多項重要的錯誤修正,包含:
•Double-tap an image within a book to view it in greater detail.
•Experience books that include audio and video.
•Enjoy substantial performance improvements when reading PDFs.
•Look-up definitions to English words inside books without a specified language.
•Addresses an issue that may have caused some book downloads to not complete.
•Includes many stability and performance improvements.