These features are almost identical to those listed for version 1.1.1 however, Apple states the following for the 1.1.2 release:

"Boot Camp 1.1.2 beta contains several updates and is intended for all new and previous Boot Camp beta users."

Current Boot Camp users do not need to repartition their hard drives when upgrading to version 1.1.2:

"If you previously installed Boot Camp beta, you can easily update to Boot Camp 1.1.2 beta. You don't need to partition your hard drive again (unless you want to change its size) or reinstall your Macintosh and Windows software or documents, but it's very important to update the Boot Camp Assistant software, create a new Macintosh Drivers for Windows CD and install the updated software it contains on Windows XP."

First time Boot Camp beta users need to ensure the following for their Intel-based Mac:

Apple is recommending all current Boot Camp users to upgrade to version 1.1.2 beta.  Be sure to follow the instructions in the Installation & Setup Guide PDF. The 143MB download is available for free.  A non beta version of Boot Camp will ship as part of Mac OS X 10.5 Leopard which is slated for release in Spring 2007.

Although Apple doesn't explain the exact details of the upgrade, it's logical to conclude taht the new version adds support for the recently released mainly the Core 2 Duo MacBook Pro.