Recently Xiaomi has released Android Oreo for its Android One product Mi A1 similarly, Motorola is releasing Android Oreo for its own Android One Device Moto X4.
The update has been released over the air today.
The update has the NEW build version OPW27.1 which brings Android Oreo along with several bugs fixes.
The company has held its promise regarding the release time of update for Moto X4.
To check for Update :
Go to Settings->About Phone->System Updates.
As this update is delivered via OTA Update so the update might take some time to reach your device.