Exactly. What I see is that the SoC provider just freezes everything at a given version and supports just that. For example I am currently building Android 9 on

Exactly. What I see is that the SoC provider just freezes everything at a given version and supports just that. For example I am currently building Android 9 on a QCOM SoC with a 4.9 Kernel. I don't think it will receive any future update...