hello,currently the product does not need to be upgraded, so there is no firmware.only when compatibility problems are found do you need to upgrade the firmware. 

Could you please update us your full Minolta lens model ?as Minolta has MD MC and AF mount, K&F Concept MD-M4/3 is suitable for: Lens: Minolta MD MC Mount lens(not for Minolta AF mount: KF06.157) Camera: Micro 4/3 (MFT) mount mirrorless camera like Olympus PEN, OM-D series, Panasonic Lumix DMC-G1, G2, G3, G10, GX1, GH1, GH2, GF1, GF2, GF3, GF5, GH4, Panasonic AG-AF100 Mirrorless Digital Cameras, Black Magic Pocket Cinema Camera (BMPCC) 

hello panasonic lumix g7 is m3/4 mount, so the adapter ring could not work for panasonic lumix g7 

hello FD-M4/3 suitable Canon FD Lens and Micro 4/3 M4/3 Mount Camera .we have confirm your panasonic lumix gx85 is M4/3 mount,so the adapter ring can work with your camera 

If you are referring to the Panasonic DMC-G7, then yes, it will adapt any Canon FD mount lens to any micro 4/3 mount camera. Including yours.