Pokémon GO, the gigantic mobile hit, is now being updated to version 0.67.1 for Android and 1.37.1 for iOS users. The major update will include a number of improvements, so read it over below. Here is the breakdown coming from the good people at Niantic:
Trainers,
Pokémon GO is in the process of being updated to version 0.67.1 for Android and 1.37.1 for iOS devices. Below are some release notes and comments from our development team.
Gym features significantly updated to add the all-new motivation system.

Added new Gym Badge feature.
Added in-app and push notification system for Gyms.

Added Raid Battles, a new cooperative gameplay experience.

Added four new items available only by completing Raid Battles.

Added Raids tab to Nearby screen.

Added search functionality to Pokémon collection screen.

Added visual indicator to unvisited PokéStops.

?The Pokémon GO team
I still log in every day to Pokémon GO just to see what Pokémon are out and about… Do you"

...