If the app asks for an update that isn't available, try clearing the app data. Go to Settings > Apps > YouTube > Storage > Clear Data .
Keep in mind that some features might not be available on all devices or in all regions. The YouTube app is regularly updated, so you may find additional features or improvements in newer versions. Youtube For Android 5.1.1
: Modern versions of the YouTube app typically require Android 9.0 (Pie) or later to function correctly. Challenges for Users If the app asks for an update that
Enable in Settings > Security before installing. Fixing "Update Required" Loops : Youtube For Android 5.1.1