> ## Documentation Index
> Fetch the complete documentation index at: https://arizeai-433a7140.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# 03.24.2025: Tracing configuration tab

> Available in Phoenix 8.19+

<Update label="03.24.2025">
  ## Tracing Configuration Tab

  <Frame>
    <iframe src="https://cdn.iframe.ly/7hf3YeA" width={1000} height={400} allowFullScreen />
  </Frame>

  Within each project, there is now a **Config** tab to enhance customization. The default tab can now be set per project, ensuring the preferred view is displayed.

  Learn more in [projects docs](/docs/phoenix/tracing/llm-traces/projects).

  <Card title="feat(tracing): add a config tab by mikeldking · Pull Request #6857 · Arize-ai/phoenix" icon="github" href="https://github.com/Arize-ai/phoenix/issues/6857" horizontal>
    GitHub
  </Card>

  ### Improvements and Bug Fixes 🐛

  * [**Tracing**](https://github.com/Arize-ai/phoenix/pull/6904): Use correlated subquery for orphan spans
  * [**Spans**](https://github.com/Arize-ai/phoenix/releases/tag/arize-phoenix-v8.19.1): Add toggle to treat orphan spans as root
  * [**Performance**](https://github.com/Arize-ai/phoenix/pull/6896): Upgrade react-router, vite, vitest
  * **Experiments**: Included delete experiment option to action menu
  * **Feature:** Added support for specifying admin users via an environment variable at startup
  * **Annotation:** Now displays metadata
  * **Settings Page:** Now split across tabs for improved navigation and easier access
  * **Feedback:** Added full metadata
  * **Projects:** Improved performance
  * **UI:** Added date format descriptions to explanations
</Update>