Mac OS X support notes:

— OS X 10.4 & 10.5 are not supported in this 1.9.0 release. Customers running OS X 10.4 or 10.5 should download and use the latest iRAPP 1.8 here.
— OS X 10.7 (Lion) support is in alpha stage now. We are not responsible for possible problems during the remote access, but any customer feedback is highly appreciated.
 

Fixes and Improvements.

Performance improvements:
— "Maximal Color Depth" - allows to restrict the color depth on the server side.
NOTE: This setting is not user-specific for now, it will affect all connected sessions.
— "Compression Mode" - allows to set an acceptable quality-loss compression level which depends on the given network bandwidth.

NOTE: This is experimental feature. Customers, who experience problems with the default "Adaptive Quality" can switch the mode to "HighBandwidth," which completely corresponds to the previous iRAPP version.

Application behavior:
Partial fixes for OpenGL and QT. The real efficiency depends on the video-card type. Affected applications:
— OS X 10.6 - Safari
— OS X 10.7 - Safari, Xcode, iWorks, iTunes

Download it Here

Posted in Release Notes