Upgrade to React 16.3

class ExampleComponent extends React.Component {
  static getDerivedStateFromProps(nextProps, prevState) {
    // Called after a component is instantiated or before it receives new props.
    // Return an object to update state in response to prop changes.
    // Return null to indicate no change to state.
  }

  UNSAFE_componentWillMount() {
    // New name for componentWillMount()
    // Indicates that this method can be unsafe for async rendering.
    // Prefer componentDidMount() instead.
  }

  UNSAFE_componentWillUpdate(nextProps, nextState) {
    // New name for componentWillUpdate()
    // Indicates that this method can be unsafe for async rendering.
    // Prefer componentDidUpdate() instead.
  }

  UNSAFE_componentWillReceiveProps(nextProps) {
    // New name for componentWillReceiveProps()
    // Indicates that this method can be unsafe for async rendering.
    // Prefer static getDerivedStateFromProps() instead.
  }
}