Apple has released Security Update 2006-004 for Mac Pro and Mac OS X Server v10.4.7 (Universal). Of the update the company notes: “Security Update 2006-004 is recommended for all Mac Pro systems running Mac OS X v10.4.7 (build 8K1079), and systems running Mac OS X Server v10.4.7 (Universal), and improves the security of the following components: ImageIO and OpenSSH.