https://www.linux.com/news/2017/9/android-oreo-adds-linux-kernel-requirements-and-new-hardening-features

https://source.android.com/devices/architecture/kernel/modular-kernels#core-kernel-requirements

“The Android 8.0 release includes Project Treble, a major re-architect of the Android OS framework designed to make it easier, faster, and less costly for manufacturers to update devices to a new version of Android. Treble is for all new devices launching with Android 8.0 and beyond (the new architecture is already running on the Developer Preview for Pixel phones).[…]”