Save your legacy device. Sideload your IPA. Keep watching.
When the official app fails to load content or throws "Update Required" errors, users often turn to sideloading IPA files—iOS app packages. youtube ipa for ios 12.5.6
AltStore is a bit heavier but allows you to refresh the YouTube IPA over Wi-Fi. Save your legacy device
You have three primary installation methods. None require a jailbreak, but they do require a computer (Mac or Windows) and a USB cable. youtube ipa for ios 12.5.6