Payment Plans
With the Payment Plans feature, you can now have your customers pay their invoices on installments. Below is a screenshot of an invoice on payment plan:
More details on payment plans can be found here: How to put invoices on Payment Plans
Recurly
Recurly is now available as a payment processor. More information about Recurly can be found here: http://recurly.com/gateway or https://docs.recurly.com/payment-gateways/recurly