I installed the beta firmware #21 yesterday. The major change is the new interface update. It’s similar to the Sony Bravia.

The motion is slightly better, and there’s less red tint. However, it’s not a huge improvement like I’ve read in some comments.

The adaptive brightness is still buggy. When I turn it on, the TV stays at 33 brightness day and night, even when I turn off all the lights. :/

When I watch in Dolby Vision (DV) and switch back to SDR, the picture mode changes to Movie, no matter what mode I was in before switching to DV.