"The 10.3.4 Update delivers enhanced functionality and improved reliability for Mac OS X v10.3 'Panther' and is recommended for all users.
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."