I got my update on 2/28. Hardware version NFGL, Software now 19.49.13, Maps version 17Q4. I'm not sure where it started since I forgot the magic incantation to find the version. (Was in ND when it prompted for update.)
Apparent differences:
1. When running Maps navigation in Android Auto the volume is much lower than before. Maybe it remembers your setting too (instead of defaulting to 14), not sure, will have to run it again.
2. The current radio preset used to be highlighted in red, now that is not present at start or when you switch off the Radio screen. If you select a preset it will turn red until the screen is changed.
I am wondering if mine is doing the same for the volume. Since I got the update on Saturday, the speakers will mostly mute, but there is no audio when Waze is trying to tell me something. Don't remember how it was when I used the built in navigation. I was glad for online mode, since it found a place that it used to go I have no clue.
On the center dash display, where the speed and such are shown, on option 2, where in my case was tire pressure changed, or have I just never done anything there before. After the update, I was scrolling through, and where the tire pressure was, was blank. I scrolled through the rest of the windows, and they were fine. I went back to that, and noticed left, and right arrows, which I don't remember before, but could be I just didn't pay attention. It gave me a fair number of information about temperatures and different pressures, as well as oil time left and such.
Now if the makers of the maps would update from the 2017 maps.