Panasonic has officially announced new firmware version 1.3 for Lumix S1 and S1R full frame mirrorless cameras today. The S1 (B&H Photo Video/Adorama/Amazon) and S1R (B&H Photo Video/Adorama/Amazon) gain CFexpress compatibility, function better with Sigma L-mount lenses and adapters, along with a host of minor fixes and feature extensions. The new firmware version 1.3 will be available on November 19th, 2019.