When I tried training a gym earlier, but after the dailies had started, it was the same as before. When did the gym changes go live, or is downloading an update necessary for them? Also, to get 500 prestige is it necessary to train using a Pokemon with half the CP of the one in the gym, or will using an equivalent one still give 500 prestige?
I'm glad for the changes. Almost all the gyms I see are level 10. I'm in many of them, but having stagnant gyms really takes a lot out of the game.