Apple today began rolling out the fourth build of tvOS 11 to developers for testing on the fourth-generation Apple TV. This comes two weeks after the third beta was released to the same party. Those of you registered to receive public builds of the software can expect the beta in the coming days.
If your set-top-box is registered for preview builds of the OS, head over to Settings > System > Software Updates > Update Software and hit the download button.
tvOS 11 includes minor improvements but will bring the Amazon Prime Video app to the Apple TV alongside scheduled dark and light modes for viewing times. We’ll update this article if any major changes were made in the latest build.