Panasonic today has announced a series new firmware for their L-mount mirrorless cameras: Lumix S1H, Lumix S1, Lumix S1R, Lumix S5, Lumix BGH1. You can take a look at details of new firmwares:
L-Mount Rumors, Panasonic S5 & S1 & S1R & S1H Full Frame Mirrorless Cameras Rumors