As some may have gathered, I have 2 Q's now. I bought the first for my wife, but after well over 2k images shot myself I thought I better give her back her camera
so I took this as an opportunity to test firmware 1.1 vs 1.01.
I did a quick shot out the back door at ISO 125 and 800, upgraded to FW 1.1, and repeated the same shots. When looking closely, I noted what seemed like more contrast but less detail in the 1.1 shots; I pulled out the 2nd Q (still on 1.01 at that point) and verified the same. The light was starting to fade and I didn't use a tripod, so I resigned to more investigation on the other Q body later.
Later that evening, I repeated this test indoors by resting the Q on a solid surface. I took a shot at 125 and 800, upgraded the firmware, and took the same two shots again. Much to my surprise, I saw the same; firmware 1.1 is noticeably less detailed than 1.01. I attempted to load firmware 1.01 back on the body, which worked (yay!), and repeated the same test 2 more times (2 shots, upgrade, 2 shots, etc). In doing this, I have some fairly solid observations:
1. Firmware 1.1 noise reduction is more aggressive, even at same NR settings. The net result is less fine detail along with less pronounced "grain"
2. Firmware 1.1 consistently exposes +1/3 stop vs 1.01 (I initially mistook this as greater contrast, but its exactly 1/3 stop more exposure)
3. Autofocus has definitely changed: I was unable to lock on certain targets in very low light with firmware 1.01 that 1.1 locked, every time.
I did a quick screenshot dump to paint--not ideal but all I have--which is linked below. I encourage everyone to try the same experiment to validate or refute my findings. For now, I'm leaving my Q at 1.01 as I prefer the detail and don't mind the grain. But the focusing may win me over...
For reference, my settings always are as follows (I encourage all who test to use these settings for repeatability): NR LOW, Shadow and Highlight compensation OFF, natural mode with the following adjustments from base (+1 HUE, +1 high/low key adj, +4 contrast, +1 FINE sharpness).
Just a guess here, but I'm betting these changes are deliberate and come from development for the Q10... A base meter adjustment of +1/3EV, different noise reduction algorithm, and potentially a different fine sharpness algorithm; all designed to smooth the images and give a little more pop.