Most firmware updates are dull affairs, with the occasional bug fix or quality of life updates. Hasselblad's newest firmware update, however, is a little more substantial.
The primary selling point of the update is likely to be the long awaited advent of video capture to the X1D II 50C and 907x Special Edition:
Expanding the imaging options of the X1D II 50C and 907X Special Edition, 2.7K (2720 x 1530) & HD (1920 x 1080) video capture has been added. Video can be recorded at 29.97 fps with 4:2:0 8bit colour. The 2.7K resolution option delivers improved capture of detail, whilst balancing the final video capture size.
However, that wasn't the only interesting addition. The update also included focus bracketing for compositing images typically seen in macro stacking, in-camera image rating, 2/3rd stops options in the Exposure Bracketing function, expanded White Balance presets and tools (see video), and a number of other quality of life changes.
The video option in particular means that the X1D II 50C might become more viable for more photographers who also shoot video. It's true, you still can't shoot 4K at 60 frames per second which is a limiting factor, but it's certainly a step in an interesting direction for Hasselblad.
Man, I'd love one of those 907x bodies (plus the CFV back obviously). I'd also love an X1D 50c. Someday maybe I'll be able to justify it.
That 907x is really cool, though, and a great idea. Use it with mirrorless XCD lenses or attach the back to a 500 series Hasselblad and use newer V lenses or older manual focus V lenses.
So many great options. I'd love to see more modularity like this in other cameras. Swappable core bodies with sensors, for example. Keep your EVF, grip, all that. Or just swappable sensors period, like many cinema cameras.