Grafana 9 introduces a revamped and unified alerting system designed to enhance user experience by integrating feedback from the community, offering significant improvements over the previous versions. This system combines Grafana panel and Prometheus-style alerts into a single, cohesive interface, allowing for the creation of multi-dimensional alerts that can generate multiple instances per rule for greater flexibility and control. Users can now manage alerts more effectively with features such as grouping, routing, and silencing notifications, ensuring that alerts are organized and sent based on specific criteria. The introduction of notification policies allows for sophisticated routing and bundling of alerts to prevent notification overloads, while mute timings enable users to define periods when alerts are not to be sent. The system remains open-source and is available across all Grafana deployments, with plans for further enhancements such as improved user experiences, role-based access control, and an updated Terraform provider. As Grafana Alerting becomes the default in Grafana 9, the option to revert to the legacy system will be phased out in future versions, highlighting the company's commitment to continuous improvement and user-centric development.