3 years of OS and security updates is actually quite good for an Android phone relatively speaking. Qualcomm doesn't usually agree to support their SoC's for mo

3 years of OS and security updates is actually quite good for an Android phone relatively speaking. Qualcomm doesn't usually agree to support their SoC's for more than 2 years so getting an extra year out of Qualcomm must have been expensive. And therein lies the problem - Google has been beholden to Qualcomm to update their drivers for every major release of the OS. Perhaps this will change now that the Linux kernel has 6 years of LTS and Android 8 and onward now allow the OS to updated without modifying the kernel, but who knows. One interesting note is the length of support Intel has provided to the Nexus Player. First released in 2014 on Android 5 it recently received Android 8 in 2017. It's too bad Intel is out of the mobile SoC market because their level of support has been unparalleled by any SoC manufacturer.