Gravity Forms PayPal Payments Pro Add-On v1.0 Beta 4 has been released via automatic update. This is a compatibility release that ensures compatibility with changes made in the new Gravity Forms v126.96.36.199 release.
The Gravity Forms PayPal Pro Add-On requires Gravity Forms v188.8.131.52+, WordPress v3.3+ and a valid SSL Certificate installed and configured on your WordPress site.
Because of the secure nature of capturing credit card information you will also be required to purchase and install an SSL certificate on your web site. You will also need to configure your WordPress site to work properly with SSL.
Contact your web host if you need assistance purchasing and configuring an SSL certificate.
If you need assistance configuring your WordPress site to work with SSL we recommend the WordPress HTTPS (SSL) Plugin which you can find here.