This is the first public alpha release of Modern Relay. While this release is pretty sparse on details and documentation, we wanted to get code to you soon so you can help us kick the tires and most importantly make sure that your existing apps are still working.
Install react-relay@dev to get this and future alpha releases.
After installing v1.0.0, existing applications will need to replace require('react-relay') with require('react-relay/classic').