What is the difference between the G400D Beta Evaluation Kit that I have and the G400 HDR Breakout and G400D SOM production releases available for purchase today.
There’s at least one identified issue (Ethernet) that was identified in the beta of the G400-D module. Whether there are any changes to the HDR holder is probably less important.
I suspect the GHI team are just using the same images or are still pending the production images, and you should NOT assume that there is a simple firmware update to turn the not-for-production-use module into something usable in production.