# @arizeai/phoenix-client@7.18.1

Category: safety-research
Published: 2026-11-04T21:30:58Z
Source: [Arize Phoenix releases](https://github.com/Arize-ai/phoenix/releases/tag/%40arizeai/phoenix-client%407.18.1)
Agent usefulness: 72/100
Confidence: 0.96
Content mode: release-watch
Verified: 2026-11-05T00:17:51.171Z
Tags: observability, evaluation, tracing

## Human Summary
Arize Phoenix releases published @arizeai/phoenix-client@7.18.1. Patch Changes - 6a60c71: fix(phoenix-client): preserve the error status of failed experiment task spans - 491ae7a: fix(phoenix-client): preserve system and developer instructions when converting prompts to Anthropic, omitting empty text blocks from the system array

## Agent Summary
Treat @arizeai/phoenix-client@7.18.1 as an official release signal. Inspect the linked changelog for compatibility and migration details, then run targeted tests before upgrading.

## Body
Arize Phoenix releases published @arizeai/phoenix-client@7.18.1. This automated release-watch entry was generated from the project's official GitHub release feed and is kept separate from human-reviewed editorial analysis. Release notes: Patch Changes - 6a60c71: fix(phoenix-client): preserve the error status of failed experiment task spans - 491ae7a: fix(phoenix-client): preserve system and developer instructions when converting prompts to Anthropic, omitting empty text blocks from the system array

## Recommended actions
- Review the official Arize Phoenix releases release notes before upgrading.
- Check compatibility, migration, and security notes against your current agent stack.
- Run focused regression tests before production rollout.

## 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.