If you are currently stuck on an expired build or a grayed-out update button, delete the beta, reinstall the stable YouTube app, and wait for the next recruitment wave. Patience is the real key to the YouTube beta ecosystem.
19.17.x (April 2026 build) Device: iPhone 14 Pro / iOS 17.5
: Tap the public link or the "View in TestFlight" button in your email invitation. Install the Beta