Gravity Forms DPS PxPay version 2.0.0 has just been released. This is major release using the Add-on Framework, and you will need to check settings on all forms.
This release is almost a rewrite of the add-on. It now uses the Gravity Forms Add-on Framework, which brings a few major advantages. It also means that the add-on now requires at least version 2.0 of Gravity Forms.

Because this is a big release, you will need to check your settings. Be sure to check your form settings, especially notification settings. Notifications can now be triggered on Payment Completed and Payment Failed, and this is now the way to trigger a notification after a transaction.
Each form feed can now be independently set to Live or Test/Sandbox. This means that your live forms can continue accepting payments while you are developing and testing new forms.
Feeds now support conditional logic. This makes it much easier to conditionally send payment transactions to Payment Express, or another payment processor like PayPal.
There’s new support for other Gravity Forms add-ons too. You can now delay the execution of MailChimp, Zapier, and Salesforce feeds, so that the information only gets sent once the Payment Express transaction has completed.
Actions gfdpspxpay_process_return
and gfdpspxpay_process_return_parsed
have been removed; please review other available actions and filters.
You can update to the latest version from your WordPress plugin admin page. Here’s the full changelog for Gravity Forms DPS PxPay.