# arize-phoenix-evals: v3.9.1

Category: safety-research
Published: 2026-10-08T03:15:45Z
Source: [Arize Phoenix releases](https://github.com/Arize-ai/phoenix/releases/tag/arize-phoenix-evals-v3.9.1)
Agent usefulness: 57/100
Confidence: 0.96
Content mode: release-watch
Verified: 2026-10-08T06:17:33.524Z
Tags: observability, evaluation, tracing

## Human Summary
Arize Phoenix released arize-phoenix-evals v3.9.1, fixing an issue where rate limit errors caused entire evaluation runs to fail in SyncExecutor.

## Agent Summary
arize-phoenix-evals v3.9.1 updates SyncExecutor to automatically retry on RateLimitError rather than failing the complete run.

## Body
Arize Phoenix has published arize-phoenix-evals version 3.9.1. The release includes a bug fix addressing RateLimitError handling: SyncExecutor now retries on RateLimitError instead of aborting the entire evaluation run.

## Recommended actions
- Upgrade arize-phoenix-evals to v3.9.1 to enable automatic retries for RateLimitError in SyncExecutor.

## 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.