Trainers, a major change will be blowing your way. Generation 3 Pokémon, the Pokémon introduced in Pokémon Ruby and Pokémon Sapphire, will be coming to Pokémon Go! In addition, Niantic is adding a dynamic weather system that changes how Pokémon spawns will work!

50 Pokémon from the Hoenn region will be coming to Pokémon Go in the coming weeks. From now on, you’ll be able to find Mudkips, Treekos, Torchics, and even more of Generation 3’s Pokémon! More and more will be unveiled over the coming weeks.

Beyond that, Niantic will also be phasing in a brand new weather system. According to Niantic, “paying even closer attention to your local weather patterns” will be even more important.

Beyond in-game visual differences, you’ll be able to notice gameplay differences as well. Pokémon like Mudkip, for example, might come out even more during rainy weather. In addition, certain moves will become more powerful under different weather conditions.

Pokémon Go‘s big Generation 3 update will come later this week. Get ready: we’ve got a whole new generation to catch, and new mechanics to explore.