I am surprised that no mention is made to the improvement of 3D Viewing in the changelog.
Before the update I was disappointed with the quality of the 3D, I had got crosstalk, ghosting, and blurring on all 3D content. Now, after the update, I cannot fault the quality, it is pinsharp, perfectly clear, and also I find that it is less tiring, ie I get no headache after watching a full film. Very satisfied with my Sony now.