New webhook delivery system
Webhooks now use a new delivery infrastructure with improved reliability, automatic retries with exponential backoff, and signature verification. All events follow a consistent structure with eventId, eventType, and data fields. See Webhooks for details.
Transition period: Until April 30, 2026, both legacy and new webhook formats will be delivered. After this date, only the new format will be sent.
Transition period: Until April 30, 2026, both legacy and new webhook formats will be delivered. After this date, only the new format will be sent.
Legacy webhook format deprecated
Migrate to the new webhook format and update your signature verification to use the webhook-id, webhook-timestamp, and webhook-signature headers. See Verifying webhook signatures for implementation examples.

