BelongsTo and HasMany fields now use a more powerful and user-friendly widget than the standard select dropdown to fetch relevant records from the backend.
Mounting Uchi is now done by adding Uchi.routes.mount(self) to config/routes.rb. The old explicit mount syntax still works, you won't reap some of the future benefits by doing so.
Routes for RepositoryControllers are now automatically added to the host app's routes.
It is now possible to customize the JavaScript and stylesheet assets that Uchi loads.