Moto X4 on Project Fi starts getting the Android 8.1 Oreo update

Although a little bit later than we would've expected, Google and Motorola have teamed up to offer the latest Android version to those who own the Moto X4 on Project Fi. The official changelog confirms along with Android 8.1 Oreo, the update adds the April security patch.
It's unclear how large the update really is, but don't expect it to be as large as Android 8.0 Oreo. The regular Moto X4 model has yet to receive the update, but it's unlikely that Motorola will delay it for too long.
source: Reddit via 9to5Google