Features

• Add support for webhook signing.
• Implement setupIntents to perform 3DSecure etc on same form as card details. Previously it would prompt the user for the 3DSecure check on the "Thankyou" page.

Fixes / Changes

• Drop support for CiviCRM older than 5.35.
• Update Job.process_stripe to use API4 and clarify that it is NOT domain-specific.
• Don't initialise paymentprocessor twice for IPN. Change stripe_webhook_processing_limit so that 0=never process immediately.
• Fix getSubscriptionDetails when contributionRecur not in CiviCRM.
• Set paymentTypeLabel to 'Stripe'
• Test improvements / fixes.
• Use paymentProcessor + stripeClient object in all API calls. Translation fixes.

Developers / Integration

• Remove hook civicrm_stripe_updateRecurringContribution (we may need to implement something new in future with support for PropertyBag/API4).
• Throw exception when repeatTransaction fails.
• Throw exception on payment failure. Always update the paymentintent status in CiviCRM database.
• Switch final instances of static Stripe library access to object.
• Convert js to functions on CRM.payment and move more shared code to CRM.payment.
• Refactor checks class and move some checks to mjwshared.
• Add getters for Stripe IDs to IPN class.
• Add unit tests for Stripe.Importsubscription/ImportCharge API. Support importing subscriptions with future startdate/trial period (no invoice so we create a template contribution).
• • Provide a more helpful reason instead of 'Bad Request' when payment fails due to expired CSRF token from firewall.

Webhooks

• Add new hook webhookEventNotMatched that can be used for creating/matching missing events (eg. contributions created by other systems).
• Implement new processWebhookEvent for processing events from the webhook queue and store error message in 'message' field.
• Improve webhook queue error handling.