A few brand-new challenges have begun in both Pokémon Shuffle and Pokémon Shuffle Mobile. A few brand new challenges have begun on Pokémon Shuffle and Pokémon Shuffle Mobile. First, a special stage for Sinnoh Cap Pikachu has begun. It runs until June 27, 2017. Next, a new Pokémon Safari has begun. This Safari runs until July 4, 2017, and is a repeat of the one featuring Shellder, Cloyster, Pidove, Tranquil, Unfezant, Shiny Magikarp and Shiny Gyarados, but now also includes Magikarp Costume Pikachu and Gyarados Costume Pikachu. To tie in with this, a special stage for Shiny Gyarados Costume Pikachu has also begun. It also runs until July 4, 2017. Finally, repeat runs of Arceus, Thundurus Therian Forme and Gyarados have begun. They both run until July 4, 2017. All of these require the version 1.4.14 to download.
Source: Serebii