What’s New in Grafana 8.0? A Deep Dive into Alerts, Panels, and Real‑Time Streams

Foreword

Grafana v8.0 brings major changes, including a complete rewrite of the alerting system, new visualizations such as state timeline, history and histogram panels, real‑time streaming, reusable library panels, and fine‑grained access control that lets enterprise users assign appropriate access levels.

Performance and UI improvements give a fresh look, faster dashboard loading via query caching, and reduced initial data download for quicker startup and interaction.

1. Alerts

Grafana Cloud introduced Prometheus‑style alerts last year; Grafana 8.0 unifies Prometheus and Grafana alerts in a single UI for viewing and editing, supporting hosted alerts, Cortex alerts, and Loki alerts in one searchable view.

Alerts are now decoupled from dashboards, with multi‑dimensional alerts, notification policies for large‑scale management, and a full‑featured API.

2. Value Mapping

The new value‑mapping editor lets you map strings and boolean states directly to colors and optional display text, working across all Grafana visualizations, including the new state timeline panel.

3. State Timeline Panel

The “State Timeline” panel shows string or boolean states over time, with colors assigned via value mapping and thresholds to visualize discrete state durations.

4. History Panel

The History panel visualizes periodic data over time, allowing colors for numeric, string, or boolean values via value mapping.

5. Bar Chart Panel

The new bar chart panel adds drawing capabilities for non‑time‑series data, supporting categorical axes, grouped bars, and both horizontal and vertical layouts.

6. Histogram Panel

The histogram panel, formerly a hidden feature of the old graph panel, is now a standalone visualization that combines bucketed data distribution with bar chart visuals and can be paired with any other visualization.

7. Panel Search and Table View Switch

Search functionality improves navigation of long panel lists, and a new table view toggle lets you quickly inspect data passed to visualizations.

8. Library Panels

A new workflow allows panels to be saved as reusable library panels, propagating changes across all dashboards that use them.

9. Real‑Time Streams

Real‑time streams, previewed in 7.4, gain full features in 8.0, supporting MQTT websocket connections, cURL or Telegraf streams, and a live endpoint /api/live/push for pushing events to dashboards.

10. Loki Log Improvements

Log navigation receives pagination, enabling you to view older or newer logs, and logs can be downloaded as text files via the Data tab in the panel inspector.

11. Expanded Traces Support

Grafana Tempo now allows direct querying of Grafana Loki for trace searches, with added Loki data source support to simplify trace discovery and query building without deep LogQL knowledge.

12. More Information

Refer to the documentation and release notes for a complete list of new features, changes, and bug fixes, and subscribe to upcoming webinars for deeper insights into dashboards and the Grafana 8 UI.