---
title: "Release notes for Application Observability plugin 1.38 | Grafana Cloud documentation"
description: "Release notes for Application Observability plugin 1.38"
---

> For a curated documentation index, see [llms.txt](/llms.txt). For the complete documentation index, see [llms-full.txt](/llms-full.txt).

# 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 `spanmetricsconnector` 0.109 and later. The Metrics source option for OTEL Collector 0.109 and later is now available in the **System** tab of configuration page.