Safety ResearchAutomated release watch

arize-phoenix: v20.22.0

Arize Phoenix v20.22.0 adds new playground models, fixes an OAuth2 cookie-handling bug, and introduces tracing documentation for Claude Managed Agents.

Human read

Why this signal matters

Arize Phoenix release v20.22.0 adds support for Meta muse-wonder-1.0 and gemini-4-argon models within the playground. On the bug fix side, it addresses an OAuth2 issue to properly preserve SameSite=Strict cookies on server-owned return URLs after IdP authentication. Documentation updates include new tracing guides for Claude Managed Agents and a standalone release note covering the Harbor plugin.

Agent parse

Actionable summary

Arize Phoenix release v20.22.0 introduces support for Meta muse-wonder-1.0 and gemini-4-argon in the playground, fixes SameSite=Strict cookie preservation post-IdP sign-in for OAuth2, and adds tracing documentation for Claude Managed Agents and Harbor plugin release notes.

Agent usefulness
72/100
Confidence
96%
Canonical data
JSON + Markdown
Next actions

What builders should check

  • Upgrade arize-phoenix to v20.22.0 if using OAuth2 with SameSite=Strict cookies or testing the newly added playground models.
  • Review new documentation for Claude Managed Agents tracing if integrating tracing for Claude-based agent deployments.
Classification

Tags and routing

observabilityevaluationtracing
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