http://wccftech.com/tvos-11-release-date/

Though not as popular as other OSes from Apple, tvOS 11 now has a release date, and it is set for 19th of September.

If it carries a new version number, then it’s definitely an important update, and tvOS 11 should be treated as such. Back at WWDC 2017, Apple didn’t even talk about tvOS on stage except for that the fact that it had something exciting to share with everyone in the fall. The company has stayed true to its word and has revealed a new 4K-enabled Apple TV set-top box and is powered by the company’s new tvOS 11 software. Also keep in mind that the update will be available for current Apple TV 4 users as well. This means you can enjoy its new features and elements absolutely free.