A new update has started hitting Motorola Moto Z Force Droid Edition smartphones in the United States. It's a monthly security update that brings Android security fixes for the month of December.
A quick look at the Meizu M5 Note release notes posted by Motorola on its website reveals that nothing else is included in the update.
Given that the roll out has Meizu just begin, it may take time for the update notification to pop up on your device's screen.
Meanwhile, if you feel impatient, you can manually check for the update by heading to your handset's Settings menu.