From the blog "Sandbox Update Notes"

+ Added inventory and hotbar systems + Added weather status UI - displays altitude, humidity, and temperature + Added decorators to world generation - decorators refer to small ground details, such as flowers, pebbles, etc + Added resources to world generation - this currently only generates trees, but will generate other resources in the future + Added world features to world generation - this refers to any sort of premade structure which can generate within the world, with the