What Is the Solaris 9 Maintenance Update 4?

The Solaris 9 MU4 contains almost the same set of patches as the patches prepackaged on the Solaris 9 8/03 Software CDs. The MU4 installation automatically updates your system without regressing any patches that you have previously installed.

The Solaris 9 8/03 Software CDs contain a number of additional patches which are required to build the Solaris 9 8/03 image and therefore are not included in the Solaris 9 MU4. For more information, see Identifying the Version of Your Solaris 9 Maintenance Update.

The Solaris 9 MU4 is available as a file for downloading from the Web.