Nintendo and The Pokemon Company have published the full patch notes for Pokemon Sword and Shield’s version 1.1.0 update, which was released on January 10, 2020 in Japan.

The patch notes are as follows (translated by NintendoSoup):

• Adds a button to purchase the Pokemon Sword/Shield Expansion Pass. This button could be found on the menu for the game. Press the button to purchase the Expansion Pass on Nintendo eShop.
• New event added. Head over to Wedgehurst Station to check out the new event.
• Other bug fixes

Thanks, Brandon.