●Change8

Migrating to Arize Phoenix arize-phoenix-v16.0.0

Version arize-phoenix-v16.0.0 introduces 1 breaking change. This guide details how to update your code.

Released: 5/21/2026

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Breaking Changes
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Migration Steps
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Affected Symbols

⚠️ Check Your Code

If you use any of these symbols, you need to read this guide:

agents

Breaking Changes

●Issue #1

Sandboxing and Code Evaluators were introduced, which likely changes how evaluation strategies are defined and executed. Users should consult MIGRATION.md for specific required changes.

Migration Steps

  1. 1
    Review the MIGRATION.md file for detailed instructions regarding the changes related to Sandboxing and Code Evaluators.

Release Summary

Version 16.0.0 introduces powerful Sandboxed Code Evaluators for flexible evaluation strategy composition and enables native web search/fetch for agents. This release contains breaking changes requiring migration.

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View the full release notes and all changes for Arize Phoenix arize-phoenix-v16.0.0.

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