arize-phoenix-v15.4.0

📅 May 5, 2026📦 arize-phoenixView on GitHub →

✨ 6 features🐛 1 fixes

Summary

Version 15.4.0 introduces significant enhancements to agents, adds filter-based DELETE endpoints via the API, and includes token counts in REST API payloads. A bug related to trace selection in the session view was also resolved.

✨ New Features

Added agent set_time_range tool with hardened context injection.
Introduced ToolPart styles and subcomponents for agents.
Added filter-based DELETE endpoints for span/trace/session annotations.
REST API now includes token counts in span/trace/session payloads.
Simplified trace/span status icons and used status badge in panel views.
Added vendor passthrough tools support.

🐛 Bug Fixes

Fixed issue allowing selection of traces within the session view.