Atelier Sophie 2 has been updated to version 1.06 today by Koei Tecmo. You can get the complete patch notes for this update from here.
The new feature in this update is the addition of Swimsuit DLC. This includes Plachta, Ramizel, Alette, Olias, and Diebold’s Swimsuit. A minor issue was also fixed that could lead the game to crash. Take a look at the patch notes mentioning the fix below.