I just set up an Apple TV an hour ago and it updated to tvOS 12.0.1. You can find Apple's security update details at https://support.apple.com/en-us/HT201222, though it sometimes takes a bit for them to update that page.
I just set up an Apple TV an hour ago and it updated to tvOS 12.0.1. You can find Apple's security update details at https://support.apple.com/en-us/HT201222, though it sometimes takes a bit for them to update that page.