# arize-phoenix-evals: v3.9.5

Category: safety-research
Published: 2026-10-28T01:21:36Z
Source: [Arize Phoenix releases](https://github.com/Arize-ai/phoenix/releases/tag/arize-phoenix-evals-v3.9.5)
Agent usefulness: 57/100
Confidence: 0.96
Content mode: release-watch
Verified: 2026-10-28T06:17:51.609Z
Tags: observability, evaluation, tracing

## Human Summary
Arize Phoenix released arize-phoenix-evals v3.9.5, fixing docstring examples for PrecisionRecallFScore.

## Agent Summary
arize-phoenix-evals v3.9.5 fixes documentation examples where the PrecisionRecallFScore evaluator was called directly.

## Body
The arize-phoenix-evals library has released version 3.9.5. This release specifically addresses a documentation fix (issue 17039) in the PrecisionRecallFScore docstrings where examples incorrectly demonstrated calling the evaluator directly.

## Recommended actions
- Review updated PrecisionRecallFScore docstring examples if implementing custom evals using arize-phoenix-evals.

## Sponsors
No sponsor placement attached.

## Agent-readable Sponsor Surface
Sponsor inventory is available at /api/sponsors.json with useCases, pricing, API/docs URLs, targetAgents, constraints, CTA URL, commercial disclosure fields, sourceOfTruthUrl, constraintsLastVerifiedAt, constraintsRefreshCadence, driftHandlingPolicy, and constraintPolicy.