Documentation for automated readers
A curated documentation index is available at: https://grafana.com/llms.txt
A complete documentation index is available at: https://grafana.com/llms-full.txt
These indexes can help with page discovery before fetching individual documents.
This page is also available in Markdown, which may be easier for automated readers and AI tools to parse than HTML. The Markdown version is available at https://grafana.com/docs/grafana-cloud/observe-and-act/monitor-applications/application-observability/releases/v1.38.0.md, or by sending Accept: text/markdown to https://grafana.com/docs/grafana-cloud/observe-and-act/monitor-applications/application-observability/releases/v1.38.0/. For broader documentation discovery, the curated index is available at https://grafana.com/llms.txt and the complete index is available at https://grafana.com/llms-full.txt.
Menu
Documentation
Grafana Cloud
Observe and act
Monitor applications
Application Observability (Classic)
Release notes
1.38
Grafana Cloud
Release notes for Application Observability plugin 1.38
1.38.1
Released on 2024-10-02.
- Fix issue where the Update span metrics source dialog for Tempo metrics generation displays unnecesarily when updating the Span metrics source configuration to a source other than Tempo
- Fix spelling error on the services notification that appears when metric series are being dropped
1.38.0
Released on 2024-09-27.
- Add support for span metric names generated by OpenTelemetry
spanmetricsconnector0.109 and later. The Metrics source option for OTEL Collector 0.109 and later is now available in the System tab of configuration page.
Was this page helpful?
Related resources from Grafana Labs
Additional helpful documentation, links, and articles:
Video

Intro to Application and Frontend Observability with Grafana Cloud
Learn how Application Observability and Frontend Observability combine OpenTelemetry and Prometheus to resolve issues faster without vendor lock-in.
Video

How to get started with OpenTelemetry and Grafana
OpenTelemetry delivers vendor-agnostic telemetry. Grafana turns that data into outcomes — not just dashboards — using AI-assisted workflows in Grafana Assistant.
Video

Mastering OpenTelemetry instrumentation and Grafana
A practical guide to code-based OpenTelemetry instrumentation with Grafana — demonstrates advanced techniques for adding custom spans, metrics, and attributes to capture application context that zero-code instrumentation cannot always reveal.
Choose a product
Scroll for more