New Features

• Renamed CardCVCElement to CardCvcElement which better mirrors the Elements
  API. We will keep the old component name around as an alias until 5.0.0.

• Added support for stripe.handleCardSetup

    stripe.handleCardSetup(
      clientSecret: string,
      data?: Object
    ): Promise<{error?: Object, setupIntent?: Object}>

  For more information, please review the Stripe Docs:

  • stripe.handleCardSetup

Deprecations

• CardCVCElement has been renamed to CardCvcElement. CardCVCElement will
  be removed in version 5.0.0.

Breaking Changes

• If you were already using handleCardSetup with react-stripe-elements, you
  should upgrade your integration. This method will now automatically find and
  use valid Elements.

  Old Way

  <CardElement
    ...
    onReady={this.handleReady}
  />
  
  handleReady = (element) => {
    this.setState({cardElement: element}) ;
  };
  
  const {setupIntent, error} = await this.props.stripe.handleCardSetup(
    intent.client_secret, this.state.cardElement, {}
  );

  New Way

  <CardElement />;
  
  const {setupIntent, error} = await this.props.stripe.handleCardSetup(
    intent.client_secret,
    {}
  );