V4.1.x is now on the A&H website for Microsoft Windows and Apple Mac OS X.
This release adds new Pro Tools functionality.

V4.1.0 adds support for MS Windows 8.
V4.1.2 adds support for OS X 10.8.

There are some known issues with this release – a known issues document is available on the website.

One omission from this document is that with OS X 10.8, system audio will always be sent to GS-R24 inputs 1+2 regardless of where it is routed in the Audio MIDI setup utility.