PagerDuty has announced a significant update featuring three major new features, detailed across a three-part series. The first part introduces the new integration API, which enables users to incorporate PagerDuty's alerting capabilities into any system capable of making an API call. This API allows systems to send three types of events—Trigger, Acknowledge, and Resolve—to PagerDuty, facilitating the creation, acknowledgment, and resolution of incidents. The integration supports phone, SMS, and email alerts, requiring only that the user's tool can perform an HTTP API call or execute a command-line script to engage with the API. Further details on utilizing this integration API can be found in the provided API documentation.