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I'd like to make sure I have the latest firmware for my Lumix GX1 (and soon getting a GX7), but I'm not sure how to check the installed version or how to find what the latest is.
According to the manual(pdf), page 59 it can be shown with the [VERSION DISP.] option from the Setup menu.
The latest version of all body and lens firmwares can be found on Panasonic's Joint update service for Four Thirds lenses page.
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