There was a few posts last week of a couple people getting it. I believe they said they were previously in the beta for the MiBox before it closed, and think they got it because of that.

So hopefully it is soon. =/

Does anyone know if refresh rate switching is implemented in Nougat?

Here's an (ex)beta tester who received the update +-10 days ago: https://www.reddit.com/r/AndroidTV/comments/60tooi/mibox_70_update_rolling_out/

What are we expecting with that update?

I've been following news and rumors about closely. I'm expecting it to be released in April. Info about it is mostly rumors though so......

Its already here, just not quite ready for prime time

Hopefully fixes Netflix this time