Olympus updated the lens firmware to 1.1 for the 45mm f/1.8 lens when it is used on the Panasonic G6, GF6, and GH3 cameras. Things can be a little confusing if you're reading the various Olympus and Panasonic pages about firmware updates ("Olympus lens update must be done with Panasonic body"). Indeed, if you're coming into update pages via normal channels, you might get confused about where to go to get the needed file. I'll save you the frustration: here's the page that leads you directly to what you want:
