Pokemon GO has received an update which has brought various new fixes and new enhancements. Now you can re customize the avatars from Trainer Profile screen, also Niantic has fixed the footprints glitch by removing it.
Further there are many more changes that can be seen in the latest update. As per the official changelog Pokemon GO has received:
There are many minor changes and you can see after update. Head over to the source link below to get the latest update.