Here are the primary changes in the library from the 6/17 update that just went live.
Marantz Receivers: Added Keyboard support.
Pioneer Receivers: Added new inputs and MHL commands for 2012 models.
iTunes: Updates in preparation for Roomie 1.5.
Panasonic TVs: Added many new codes for the latest models.
Pace HDC74X1 NET TV: Added Brazil model.
Sky HD+ Germany: Added DVR related codes.
To force your copy of Roomie to update right away, force quit Roomie by tapping the Home button, then double-tap Home to bring up the application bar, tap and hold the Roomie icon until a red minus sign appears, and then tap that sign. The next time you run Roomie, the library will automatically update.