Merchant Security Updates: Learn how security upgrades may affect your integration at the 2017-2018 Merchant Security Roadmap Microsite
Upcoming Change to PayPal Subscriptions Beginning March 15, 2018, changes will be made to the way PayPal creates, manages, and displays subscriptions. Click here for an FAQ related to the upcoming changes being made to PayPal subscriptions.
Not sure exactly what you mean, but it sounds like the redirect back to your thank you page, after the customer completes payment doesnt happen? Am I right?