From Amateur Photographer, just in case it is not posted elsewhere on the site:
"Panasonic has also revealed a major firmware update for the S5II, with version 2.0 due to be released on June 13, 2023. The camera will gain the firm’s Live View Composite mode, which enables users to capture long exposure stills in the daytime, without the need for ND filters. It’ll also enable both Blackmagic and ProRes raw data output over HDMI."
"Panasonic has also revealed a major firmware update for the S5II, with version 2.0 due to be released on June 13, 2023. The camera will gain the firm’s Live View Composite mode, which enables users to capture long exposure stills in the daytime, without the need for ND filters. It’ll also enable both Blackmagic and ProRes raw data output over HDMI."