> ## Documentation index
> Fetch the complete documentation index at: https://arize.com/llms.txt
> Ask it with GET https://arize.com/ask?q=<keywords or question>. Short keywords rank best.
> Use these 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).

### 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>