Find out firmware loaded on a given pysense/pytrack

[tomsoft]

I see a lot of documentation about how to update the firmware of the pytrack or pysense shields with dfu-util.
Is there any way to find out the version of the firmware loaded on a given pysense/tytrack?
Also extracting the firmware from teh device (with dfu-util -u ...) does not work, so comparing with images from the repository is not an option.