> Over time, it seems Google Play Services became the preferred vehicle for Google to rollout any kind of API-changes to have them applied on all devices immedi

> Over time, it seems Google Play Services became the preferred vehicle for Google to rollout any kind of API-changes to have them applied on all devices immediately, without waiting for the vendor to do an OS-Upgrade. Not really. That's a different thing viz. Android Pony Express: https://source.android.com/docs/core/ota/apex https://source.android.com/docs/core/ota/apex