Apple has released Security Update 2006-004 for Mac OS X 10.3.9 Client, Mac OS X 10.3.9 Server, Mac OS X 10.4.7 for both PowerPC– and Intel-based systems. Of this update, the company notes: “Security Update 2006-004 is recommended for all users and improves the security of the following components: AFP Server, Bluetooth, Bom, DHCP, dyld, fetchmail, gnuzip, ImageIO, LaunchServices, OpenSSH, telnet, and WebKit.