The clock is ticking on signing for iOS 11.1.1/11.1.2 and tvOS 11.0/11.1, so the pressure is on to save blobs for those firmwares, as well as to possibly restore to them. This doesn’t apply to everyone though, so check out our advice on the topic!
Update: tvOS 11.1 and iOS 11.1.2 are now unsigned. DO NOT ATTEMPT TO RESTORE TO THEM!
If you want to someday jailbreak your Apple TV 4, you’ll need to restore now to tvOS 11.1 and then block all software updates. This guide will show you how to block automatic updates, prevent it from downloading updates ready to install, and prevent update prompts appearing.