Backward compatibility

Today I can distribute an app to 2017 - 2021 Smart TVs (5 years). When I publish an app in 2022, will 2017 still be an option? Or does Samsung have a 5 year backward compatibility limit? I’ll have a new app ready for distribution in early 2022 that I want to include on 2017 - 2022 Smart TVs (6 years backward compatibility). Appreciate any insight this community can provide!