Before the Panasonic GH5s announcement, the company unveiled a new firmware update ver.2.2 for GH5 that fixes several bugs that were found after updating the major firmware to Ver.2.0. Pana G80 also upgraded to Ver1.3 with support for Leica DG 200mm f/2.8 lens and bug fixes.
Check out the firmware details for the GH5 and G80 MFT cameras with download links below.
Panasonic GH5 and G80 Firmware Updates Released
Panasonic GH5 Firmware Ver2.2
Panasonic G80 Firmware Ver1.3