The latest update for Pokémon Shuffle is now live and comes with many brand-new stages for the Nintendo 3DS version of the game. Pokémon Shuffle Mobile has also added more stages, bringing it in line with the 3DS version. In addition, a few new challenges have begun in both Pokémon Shuffle and Pokémon Shuffle Mobile. First is a new stage featuring Chespin (Winking), which runs until December 19, 2017. The Shiny Mega Diancie Escalation Battle stage has also begun. Finally, the Nihilego, Tornadus Therian Forme, Deoxys Attack Forme and Delibird (Holiday) stages have begun repeat runs. All of these additions require the software version 1.4.34 to download.
Source: Serebii
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