A: You have a custom ROM or de-Googled device. Install “microG” for legacy YouTube support, or switch to NewPipe.
A: Historically, YouTube supports old app versions for 2-3 years after their release. v17.09.37 may work until late 2025 or mid-2026, but expect gradual breakage of features like the comment section or search suggestions. Conclusion: Breathe New Life into Your Lollipop Device Throwing away a perfectly functional Android 5.1.1 device just because the Play Store refuses to update YouTube is wasteful and unnecessary. By sideloading YouTube v17.09.37 —the last compatible APK—you can continue watching your favorite creators, music videos, and tutorials. youtube apk android 511
Does this mean you have to throw away your device or use YouTube in a clunky mobile browser? Absolutely not. A: You have a custom ROM or de-Googled device
