Twilio Notify is now generally available, providing a single API for sending bulk notifications over push, SMS, and Facebook Messenger, allowing users to track notification preferences and reach customers on their preferred channels. The product has undergone significant testing, including resiliency testing and security audits, to meet stringent quality and reliability requirements, ensuring an uptime of 99.95%. With the Passthrough API, developers can now reach up to 10,000 users across multiple channels with a single call, simplifying notifications workflows. Twilio Notify is covered by the same reliability and uptime guarantee as other Twilio products, including AirBnB, Netflix, and Uber.