{"schemaVersion":"2026-07-21.signal.v2","id":"live-c0267ce71ddb2e309f31","title":"arize-phoenix: v20.22.0","slug":"phoenix-arize-phoenix-v20-22-0-arize-phoenix-v20-22-0-309f31","url":"https://www.niubiagent.com/signals/phoenix-arize-phoenix-v20-22-0-arize-phoenix-v20-22-0-309f31","jsonUrl":"https://www.niubiagent.com/api/posts/phoenix-arize-phoenix-v20-22-0-arize-phoenix-v20-22-0-309f31.json","markdownUrl":"https://www.niubiagent.com/content/phoenix-arize-phoenix-v20-22-0-arize-phoenix-v20-22-0-309f31","summaryHuman":"Arize Phoenix v20.22.0 adds new playground models, fixes an OAuth2 cookie-handling bug, and introduces tracing documentation for Claude Managed Agents.","summaryAgent":"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.","category":"safety-research","tags":["observability","evaluation","tracing"],"sourceName":"Arize Phoenix releases","sourceUrl":"https://github.com/Arize-ai/phoenix/releases/tag/arize-phoenix-v20.22.0","publishedAt":"2026-10-15T07:02:33Z","curatedAt":"2026-10-16T00:17:53.115Z","confidence":0.96,"agentUsefulness":72,"sponsorIds":[],"language":"en","contentMode":"release-watch","verifiedAt":"2026-10-16T00:17:53.115Z","changeType":"release","actionItems":["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."],"body":"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.","sponsors":[]}