A new Pokemon Go update is on the way. Niantic announced that Pokemon Go V. 1.21.0 (iOS)/ 0.51.0 (Android) will roll out over the next few days. While the timing of the update lines up suspiciously with the holiday season, Niantic only gave a few details about what the update changes in the game.
The biggest change is the elimination of the "phantom vibrations" glitch that has plagued players for weeks. First appearing in a recent update, the game would vibrate as if a new Pokemon were spawning even if no Pokemon appeared. The game would also trigger vibrations whenever the tracker updated.
The new update also modifies the game's day and night modes to more accurately reflect a player's actual time. Due to the recent season change, the game recently showed the map in "daytime mode" several hours after the sun actually set.
Although the change wasn't listed in the update notes, the newest update also slightly modified the game's current holiday-themed load screen, which shows Pikachu and friends stringing some lights on a PokeStop as a trainer walks by oblivious to the Clefairy about to fall on top of their heads.
Of course, it's possible that Niantic has hidden more changes in the update without mentioning them in the update notes. Niantic has hinted another big Pokemon Go announcement is coming, so we'll have to wait for a datamine to see if even bigger changes are afoot before the end of the year.