posted in july and still not released or a beta to be seen
taken from there forum,
Just a small update about the current official firmware update. Our developers are really working hard to fix the current issues that we got with the new SDK release. I can't give you a exact date, but I can tell you that we are expecting a internal test release around 9th of September. This will be a release focused most on bugs and critical errors found with new SDK. Not a exact date but gives you a idea of when to expect this release.
FYI,
and taken from what you posted also
which specific HD Audio will be additionally supported?… more details when the new firmware is released
so also seems like there not sure what they can get working