If I recall correctly, this is the same version I got since I bought this few weeks back.
So far I don't have any complaints after the color was calibrated per my previous post.
Also have OTA TV setup as well. Dont watch much, just a bonus. And for the HD channels I can get, they look great too.
The one new change I have added since the calibration, is to use 10 bit output from Media player classic. That gives further improvement. However, it seems to be most relevant in test screens. Before I turn on 10-bit, I have a hard time discerning 75% green from 100% and virtually impossible for blue. Now with 10-bit, the difference is clear. However, in-movie viewing the difference is not as huge. My point is that it's probably fine for most people not using PC/MPC as the main movie source.
So, what aspect of the set concerns you most that could be potentially addressed by new firmware?