Payflow has sent the following email out to their users, alerting them of upcoming upgrades. Is NationBuilder prepared for these changes?

Security and safety are top priorities for PayPal, but being a good partner to you is equally important. We've been communicating our plans to strengthen the Payflow integration as part of a broader infrastructure security initiative since early 2016. We're now ready to share more details with you.

Payflow TLS 1.2 endpoint upgrade

Payflow production endpoints are scheduled to be upgraded to TLS 1.2 starting 1 June 2018. When that happens, we'll no longer support TLS versions 1.0 and 1.1.

In preparation for this upgrade, you can test your integration in the Payflow Pilot environment. We strongly encourage you to adjust your configuration and test your integration prior to the Payflow Production upgrade currently scheduled to begin from 1 June 2018. 
 
For more information about the Payflow TLS 1.2 upgrade, refer to our TLS 1.2 and HTTP/1.1 upgrade microsite. 

Payflow HTTP 1.1 endpoint upgrade

As well as requiring all connections be made using TLS 1.2, we'll also require HTTP/1.1 for all connections.  To assist you in verifying the status of your integration, we've created a new endpoint - https://tlstest.paypal.com - that will identify which of the security items you need to address to connect with PayPal after June 2018.  

For more information about the Payflow HTTP 1.1 upgrade, refer to our TLS 1.2 and HTTP/1.1 upgrade microsite.