"This is also the first RadeonHD release that has DRI
(Direct Rendering Infrastructure) support for the ATI R500 and
RS600 series. Furthermore, there is the X-Video / TexturedVideo
support, CP-based (Command Processor) 2D acceleration, EXA Render
acceleration, support for scaled modes, RandR support for backlight
controls, and various other fixes. This driver is a big step
forward from the previous 1.2.1 release."