See Appendix A, Changelog for the list of bugs fixed in the Sun Ray Software 5.2.6 release update.

Updated versions of the following prerequisite software are included with this release update:

At a minimum, Sun Ray Software 5.2 6 requires these versions of software, although later versions can be installed and used. This software is provided in the Sun Ray Software media pack image under the Supplemental directory, and you should install all prerequisite software before you begin the upgrade. See the Sun Ray Software 5.2 Installation and Configuration Guide for more details.