Moto Z Play Android 8.0 Oreo update comes with April 2018 security patch, new features and improvements. Though there is no official changelog as of yet, users can enjoy features like Picture-in-Picture mode, Auto-fill, faster startup, Moto experience, notification channel and adaptive icons.

If you have not received a notification message for this update yet, follow the steps below to manually update your phone:

  1. Go to Settings > About phone >System updates
  2. Select ‘Yes, I’m in’. Once the software has downloaded, select ‘Install now’.
  3. Once the software is installed, your phone will re-start automatically. To install the Oreo update (Blur_Version.27.21.24.addison.retail.en.US) manually on Moto Z Play (XT1635), download it from here (You can also capture the OTA update file from here) and follow below steps. Warning: We strongly NOT recommend below method to update your device to Oreo, as it may brick your device. Inexperienced users should not proceed with the installation guide. Installation Instruction:
  4. Enable ‘USB Debugging’ on your phone
  5. Save the downloaded OTA update file where ADB is installed on your PC.
  6. Switch off the phone and press and hold Power + Vol Down buttons to boot into Recovery.
  7. In recovery mode, choose ‘Apply update from ADB’ and then connect your phone to PC.
  8. Open a command window from where update file is saved.
  9. Check your device for proper connection by issuing the below command: adb devices
  10. If your device is listed, then issue the below command to sideload. adb sideload filename.zip [replace filename.zip with original filename] After the installation process completes, your phone will reboot into Android Oreo. (Source)