https://www.gamespot.com/articles/new-pokemon-go-update-out-now/1100-6453019/

A new update for Pokemon Go is out now for iOS and Android, and it makes a number of changes to the popular mobile game. With the new update applied, you should see version 0.73.1 for Android and version 1.43.1 on iOS.

The update changes the game's Raid Battle system so you can see how many players are in a raid and/or preparing for it before using a Raid Pass. Additionally, you can seach through your Pokemon's moves by using "@." On top of that, players can now spin the Photo Disc at a gym using the Pokemon Go Plus accessory, which is sold separately.