Several months ago, at the suggestion here on the Mu43, I updated my OM-D E-M5 to the latest firmware 1.6. I just checked my camera to confirm that firmware revision number. Now however, when I go to Olympus Corporate site, I don't see the 1.6 version. It implies that 1.5 is the most recent. I have two E-M5s. My older one is the one I upgraded (and it still says camera body 1.6), while the newer one I have has not been upgraded beyond version 1.5 and shows that in the firmware rev. I was going to upgrade the new er one to 1.6, but I sure can't find it now! Am I nuts? Or what is going on?