10.30.2025-metadata-support-for-experiment-run-annotations.md•556 B
---
description: Available in Phoenix 12.9+
---
# 10.30.2025: Metadata Support for Experiment Run Annotations 🧩
{% embed url="https://storage.googleapis.com/arize-phoenix-assets/assets/images/releasenotes-10-30.png" %}
Added **metadata support for experiment run annotations**, with GraphQL updates to fetch and expose this information. The annotation details view now displays formatted JSON metadata across both **compare** and **example** views for easier inspection and debugging.
{% embed url="https://github.com/Arize-ai/phoenix/pull/9904" %}