When catching Pokémon now, there will occasionally be streaming stars that come off of the poke ball after a successful catch.
This appears to be something that was added in an update, but I don't know what it means.
When catching Pokémon now, there will occasionally be streaming stars that come off of the poke ball after a successful catch.
This appears to be something that was added in an update, but I don't know what it means.
I believe what you are seeing is the Critical Capture Animation:
You can read more about critical captures in this question.