New
- The main menu now has its own music. It fades into the in-game soundtrack when you start or continue a game, and back again when you return to the menu.

Fixes
- In-game music now moves on to a new track when one ends. Previously the first track of the session repeated the whole time.
- Railings now line up correctly along the sides of ramps.
- Frozen biome: you can no longer fly into the floating rock and icicle islands, and the invisible walls around some of them are gone.