Key enhancements include: Improved file sharing and directory services for Mac (AFP), UNIX (NFS), PPTP, and wireless networks. Improved OpenGL technology and updated ATI and NVIDIA graphics drivers. Improved disc burning and recording functionality. iPods connected via USB 2.0 are now recognized by iTunes and iSync. Additional FireWire audio and USB device compatibility. Updated Address Book, Mail, Safari, Stickies, and QuickTime applications. Improved compatibility for third party applications. Previous standalone security updates.