Data and AI releases

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arize-phoenix: v21.0.0

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Arize Phoenix v21.0.0 adds a system state table, new annotation kinds for decisions and agents, and runtime cost tracking for models.

ObservabilityLLMs

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Also shipped Oct 30, 2026Arize AI in October 2026 →

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arize-phoenix-client: v3.6.0

The Arize Phoenix client v3.6.0 adds support for decision and agent annotations, exposes prompt version timestamps, and includes various bug fixes for Anthropic adapters and span filtering.

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arize-phoenix: v20.27.0

Arize Phoenix v20.27.0 adds support for TypeSafe Jev decision models, improves PR review grading, and includes security fixes for GitHub token handling.

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arize-phoenix: v20.25.0

Arize Phoenix v20.25.0 adds managed agent scaffolding and includes various bug fixes for the factory and server components.

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arize-phoenix: v20.26.0

Arize Phoenix v20.26.0 adds session ID linking to Claude Console, factory candidate nomination, and Pipecat tracing support.

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arize-phoenix: v20.24.0

20.24.0 (2026-10-21) Features report uncaught frontend errors to the server log (2c0873c) Bug Fixes deps: exclude compromised litellm 1.107.0 (f6a0231) deps: require certifi 2026.10.18 to distrust the compromised emSign root (9056a4a) deps: require Node releases patched in the October 2026 security release (b7d454d) Documentation add Atomic Agents to the...

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arize-phoenix: v20.23.0

20.23.0 (2026-10-16) Features server: export server logs over OTLP (add77bf) Bug Fixes playground: forward Bedrock tool results directly as text (15355fd) Documentation add Atomic Agents tracing integration (fe5e933) Add Phoenix release notes , 2026-10-14 (97c4b2a)

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arize-phoenix: v20.22.0

20.22.0 (2026-10-15) Features playground: add Meta muse-wonder-1.0 and gemini-4-argon (d5168d1) Bug Fixes oauth2: preserve SameSite=Strict cookies on server-owned return_url after IdP sign-in (c332b0c) Documentation add Claude Managed Agents tracing docs (54fe899) add standalone release note for the Harbor plugin (fe4a06b)

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