Friday saw the release of new firmware from Leica. The interest for me is that they are re-introducting the aperture guess in the exif data.
The Leica M range have no way of informing the camera what aperture they are using, but in previous M digital cameras like my M8.2 it did make a guess. The M10 did away with that as Leica did not want inaccurate information in the Exif data. Thanks to pressure from the users, Leica have now brought this back.