Yes, this is the new official payment method for Afterpay on Shopify. You can add Afterpay to your store by clicking here. Once done you can deactivate your old Afterpay payment method by clicking here.You can learn more about the update on our website here: https://www.afterpay.com/en-US/shopify-update
Thanks for your message, it looks like @DomB_Afterpay beat me to a response! I would also recommend if you have any additional questions in regards to this to reach out via the Afterpay support page here. Of course, feel free to reach back out here with any further questions as well!