[DiapDealer]

I'm actually not putting much stock in the "version 1.9.1 update was yanked by Amazon" report that was given in that link up-thread. There have been many claims that v1.9.1 has been downloaded since then, and I myself got prompted yesterday by the K4PC app to update to 1.9.1 (which clearly indicates it supports KF8). Plus I've never found any corroborating evidence for that report.

I'm not exactly sure why some people are still getting v1.8.3 instead of 1.9.1—I suspect they're just rolling the update out extra slowly for some reason. But the fact that I just updated to 1.9.1 (via the normal "check for updates" feature of the app) is clearly in direct contradiction with any reports that the 1.9.1 version was "canceled" by Amazon.