Further documentation for the Sun Ray Server 5 product is available at: http://wikis.sun.com/display/SRS5/Home
This page includes links to both the Sun Ray Server Software (SRSS) 4.2 and Sun Ray Connector for Windows OS (SRWC) 2.2 documentation sites. It also provides the related documentation for the SRS 5 Add-on Components.
Here are the specific documentation sites for SRSS and SRWC:
Sun Ray Server Software 4.2 — http://wikis.sun.com/display/SRSS4dot2/Home
Sun Ray Connector for Windows OS 2.2 — http://wikis.sun.com/display/SRWC2dot2/Home
The release notes are available on each site from the left-hand side navigation panel.