Last Month, Panasonic officially announced the DMW-SFU2 Filmmaker V-Log Upgrade Software Program for Panasonic S1 during the S1H announcement. The price for this V-Log Upgrade software program costs $199 in US, available in July, 2019.
The good news is that if you buy or registered Panasonic S1 before July 31st, 2019, you can get DMW-SFU2 Filmmaker V-Log Upgrade Software Key for free. This offer is available at B&H Photo Video/Adorama.