This build contains an update to our Paypal integration which was necessary to adjust to some changed security requirements on their side. As far as we know, this should work exactly the same way as it did before. However, if you have time to test purchasing through Paypal in this build, that would be much appreciated. On the test server, all Paypal purchases will direct you through the Paypal "sandbox" which will not make any real charges. You can create a sandbox account and set up some dummy payment info if you want to make a test purchase. We've also deployed a new SSL certificate on the test server which will go live with this build. That affects your browser's ability to confirm secure (https) connections. For example: https://test-accounts.cardhunter.com/register So if you'd like to test creating a new test account too, that would also be very helpful. Thanks!