Open YouTube → Settings (profile icon) → About → Version number. If it’s newer than 617.391, stick with it.
: The original Smart YouTube TV project (including version 6.17.391) is no longer actively maintained, making it a target for security vulnerabilities. How to Safely Get the "Latest Version" Open YouTube → Settings (profile icon) → About
The term "Smart YouTube TV 6.17.391" typically refers to an older, third-party YouTube client for Android-based Smart TVs and TV boxes, known for features like ad-blocking and 4K support. Official Download & Updates Open YouTube → Settings (profile icon) → About
