LUMIX GH5 Firmware Version 2.3
Panasonic just uploaded these new videos to give you an overview of the new firmware update features
LUMIX GH5S Firmware Version 1.1
LUMIX G9 Firmware Version 1.1
You can download the firmware update here: http://av.jpn.support.panasonic.com/support/global/cs/dsc/download/index.html.