https://wccftech.com/super-smash-bros-ultimate-update-13-0-0-sora/

Nintendo has rolled out Super Smash Bros. Ultimate update 13.0.0 for the Nintendo Switch, adding support for the final DLC fighter, Sora from Kingdom Hearts.

The new update is available globally now, and aside from support for the Sora Challenger Pack, it adds new spirits from the Kingdom Hearts series to the shop. In addition, the update adds new DLC items, including the Doom Slayer Helmet and Armor.