Pokémon GO is in the process of being updated to version 0.57.2 for Android and 1.27.2 for iOS devices. Below are some release notes and comments from our development team.
Over 80 additional Pokémon originally discovered in the Johto region can be caught.
Gender-specific variations of select Pokémon can be caught.
Added new encounter mechanics.
Added Poké Ball and Berry selection carousels to the encounter screen.
Added two new Berries.
Added new avatar outfit and accessory options.
Added new night-mode map and encounter music.
Added bonus Candies for catching Evolved Pokémon.
Implemented Apple Watch connection stability improvement.
Various bug fixes.
Minor text fixes.
—The Pokémon GO team