openai-agents-python

v0.17.4 Feature

This release adds 1 notable feature for engineering teams evaluating rollout.

Published 8d AI Agents & Assistants

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Topics

agents ai harness llm openai python

Summary

AI summary

Updates fix, Documentation & Other Changes, and feat across a mixed release.

Changes in this release

Type	Severity	Summary	CVE
Security	High	Redacts invalid JSON payload in ModelBehaviorError data to prevent information leakage. Redacts invalid JSON payload in ModelBehaviorError data to prevent information leakage. Source: llm_adapter@2026-05-26 Confidence: high	—
Feature	Medium	Adds support for Realtime custom voice objects. Adds support for Realtime custom voice objects. Source: llm_adapter@2026-05-26 Confidence: high	—
Bugfix
Bugfix	Low	Fixes missing function tools with opt‑in recovery mechanism. Fixes missing function tools with opt‑in recovery mechanism. Source: llm_adapter@2026-05-26 Confidence: high	—
Bugfix	Low	Applies hardened HTTP client defaults to MCP SSE transport. Applies hardened HTTP client defaults to MCP SSE transport. Source: llm_adapter@2026-05-26 Confidence: high	—
Bugfix	Low	Ensures non‑None output value in FunctionSpanData. Ensures non‑None output value in FunctionSpanData. Source: llm_adapter@2026-05-26 Confidence: high	—
Bugfix	Low	Adds missing entries to span __slots__ definition. Adds missing entries to span __slots__ definition. Source: llm_adapter@2026-05-26 Confidence: high	—
Refactor	Low	Exports additional tracing‑related functions and types from agents module. Exports additional tracing‑related functions and types from agents module. Source: llm_adapter@2026-05-26 Confidence: high	—
Refactor	Low	Exports MCPListToolsItem, ToolSearchCallItem, and ToolSearchOutputItem from agents. Exports MCPListToolsItem, ToolSearchCallItem, and ToolSearchOutputItem from agents. Source: llm_adapter@2026-05-26 Confidence: high	—

Full changelog

What's Changed

feat: support Realtime custom voice objects by @lionel-oai in https://github.com/openai/openai-agents-python/pull/3473
fix: #3459 add opt-in recovery for missing function tools by @seratch in https://github.com/openai/openai-agents-python/pull/3461
fix: apply hardened http client default to MCP SSE transport by @ioleksiuk in https://github.com/openai/openai-agents-python/pull/3466
fix: use non-None value for output in FunctionSpanData by @rmotgi1227 in https://github.com/openai/openai-agents-python/pull/3475
fix: add missing entries to span slots by @rmotgi1227 in https://github.com/openai/openai-agents-python/pull/3483
fix: redact invalid JSON payload in ModelBehaviorError data by @LeSingh1 in https://github.com/openai/openai-agents-python/pull/3485
fix: export more tracing related functions & types from agents by @rmotgi1227 in https://github.com/openai/openai-agents-python/pull/3489
fix: export MCPListToolsItem, ToolSearchCallItem, and ToolSearchOutputItem from agents by @rmotgi1227 in https://github.com/openai/openai-agents-python/pull/3490

Documentation & Other Changes

Release 0.17.4 by @github-actions[bot] in https://github.com/openai/openai-agents-python/pull/3505

New Contributors

@rmotgi1227 made their first contribution in https://github.com/openai/openai-agents-python/pull/3475

Full Changelog: https://github.com/openai/openai-agents-python/compare/v0.17.3...v0.17.4

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A lightweight, powerful framework for multi-agent workflows

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