Niantic says update 0.333 contains an update to asset data in Pokémon GO and recommends downloading all assets while connected to Wi-Fi for the optimal play experience

Pokémon GO is being updated to a new version across all capable iOS and Android devices. The latest update is being rolled out to iOS and Android devices, respectively. According to patch notes from the development team at Niantic, the latest update implements various bug fixes and improvements for an overall smoother experience.

What’s New in iOS

Trainers, we hope you’re enjoying your adventure in Pokémon GO! We update the app regularly with new events and features, so make sure to check the in-game News to stay up to date.

What’s New in Android

Trainers,

Here’s what’s new in Pokémon GO!
Minor bug fixes and performance improvements

Source: Official Pokémon GO support page

Source: Pokemon