tvOS 11.1 includes bug fixes and security improvements in the OS and SDK.
What's New: ● Resolved an audio quality issue with Apple TV 4K using Bluetooth to stream to headphones that use the W1 chip. ● An issue that resulted in Ethernet connectivity ceasing to function has been resolved. ● Increased on-screen UI brightness for HDR output. ● During an OTA (over the air) update to tvOS 11.1, the display is no longer blank for an extended period of time after Step 1 of 2 completes.