I noticed a weird thing after new firmware install. I tested the camera on my kids sitting on the couch with evening bright light shining through the window, which created a lot of shiny spots and shadows on the couch and kids. Shooting at F2.8, iso 400 cause I felt it was a little dark. Some of my pics turned out to be too dark with speed like 2500, others more normal. Then I noticed that my metering was set to spot metering. I switched to multi-segment and lighting turned to normal.
My guess is that the focusing/metering area became smaller?
Can anyone confirm this?