Pokémon Go's battery-saving feature is back, and a new pokémon-tracking mode is coming

Pokémon Go's latest update is out, and it restores the battery-saving mode that mysteriously disappeared from the previous version of the iOS app. To use it, hold your phone upside-down while playing; the screen will dim, so you can walk around and wait for pokémon to buzz you without the need to constantly watch your phone.
Elsewhere, the version 1.3 update adds images of the three previously silhouetted team leaders Candela, Blanche, and Spark (named in order of awesome