You can view and download the release notes for the Express RIP in the links below.

Version 11

v11.0r4

v11.0r3

v11.0r2

v11.0r1

v11.0r0

Version 10

v10.1r2

v10.1r1

v10.1r0

v10.0r2

v10.0r1

v10.0r0