Grafana SLO is in Public Preview. This feature is supported by the engineering team on a best-effort basis, and breaking changes may occur without notice prior to general availability.
Grafana SLO (Service Level Objective) provides a framework for measuring the quality of service you provide to users. Use SLOs to collect data on the reliability of your systems over time and as a result, help engineering teams reduce alert fatigue, focus on reliability, and provide better service to your customers.
By creating SLIs (Service Level Indicators) and SLOs, you define what an acceptable level of service is and how to react if you are not providing the expected level of service.
Grafana Big Tent podcast: Why SLOs are MVPs in Observability