Changelog • February 2018 development We've released version 6.0.0 of Stripe's PHP library, which includes support for automatic request retries. radar 3D Secure often — but not always — shifts liability for fraudulent charges from your business to the card networks. Now, you can write Radar rules based on whether there's a liability shift. radar You can now set rules based on whether 3D Secure is recommended, required, optional, or not supported for a specific payment. payments A source's card.three_d_secure property can now have the value recommended, indicating that the 3D Secure process can be attempted with minimal impact on conversion rate.