It seems Niantic not only drip feeds updates to its once mega-popular Pokémon Go, but also likes to doll out news about updates in the same manner. We now know that the big summer update for the game doesn't exactly remove gyms, but transforms them into raids. Up to 20 players can now participate, at once, to topple ultra strong Pokémon with a chance to capture it for the player who downed it.
To join a raid, you'll need a raid ticket. Those can be picked up from Pokéstops, but you'll only receive one a day. Obviously you can buy more, because this is a mobile game after all. Participate in enough raids and you'll eventually earn a "special" raid ticket, which allows you to battle at a certain gym for the chance to earn a Legendary Pokémon.
via destructoid http://ift.tt/2rvSDmG