Pokémon GO is in the process of being updated to version 1.21.0 on iOS and 0.51.0 on Android devices. Some notable additions include changing day and night modes, as well as fixing a bug that caused incorrect vibration notifications. An official list of release notes and comments from developer Niantic is as follows:
- The bug that caused incorrect vibration notifications has been fixed.
- Day and night modes have changed to more accurately reflect the Trainer’s current time of day.
- Minor text fixes.
Pokémon Blog 
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