Buildkite has introduced an integration with PagerDuty Change Events, designed to assist on-call engineers by providing immediate access to recent build and deployment information, thereby reducing incident resolution time. To utilize this integration, users must set up a Buildkite service within PagerDuty, obtain the service key, and incorporate it into their pipeline.yml file using the notify property, which includes conditionals to filter relevant build events. This integration allows PagerDuty to correlate build events with ongoing incidents and offers quick access to Buildkite builds via PagerDuty's mobile and web interfaces. For detailed instructions and a practical demonstration, users can refer to Mel's presentation at the PagerDuty Summit 2021 or consult the Change Events documentation.