With new enhancements to this feature, you can now enable and disable SMS and email channels separately as well as use communication template customization options. The Recharge login widget page can now be used as the default login experience for all your customers and they can have direct access to the customer portal from the post-checkout order status page

This feature makes it easier for your customers to manage their subscription, reducing customer churn and customer support tickets. 

Go here to read more about the original release of passwordless login.

How does it work? Learn more here.