Apple today released tvOS 10.2.1 for Apple TV 4 which includes bug fixes, and security improvements.
On Apple TV (4th generation), go to Settings > System > Software Updates > Update Software. When there’s an update, as there is today, simply download and install it.
To have your Apple TV (4th generation) automatically update its software, go to Settings > System > Software Updates and turn on Automatically Update.
So where is Amazon on there?
Says the guy who’s not been paying attention
Oh I have. So where is Amazon Prime on there?
I think the paying attention comment referred to it being well publicized that the Amazon app would not be coming out until summer at the earliest.
Maybe now it will download the apps I have added.