FS7 & FS700 do not output 4:4:4 signals so we cannot record them. We already accept SDI-carried signals of 4:4:4 2K/HD in 12-bit and 10-bit for recording in DPX, Apple ProRes 4444(XQ) and Apple ProRes 4444. This update added a very specific use of an HDMI-based 4:4:4 signal, which we will now record in DPX. It's a pretty rare bird, available from some computer systems and (I think) a single camera.