Last year those two cameras got ProRes Raw output using the Atomos Ninja V recorder. Having options is a good thing, especially if you already have the Video Assist 12G. It now opens up Raw recording up to DCI 4K 30 fps at no extra charge.
A nice touch is the ability to simultaneously record to the internal SD card with the Film Simulation/F-Log/Hybrid Log-Gamma. The updates fix bugs on both cameras.