# OpenAI 发布了 Agents Python SDK v0.19.4，修复了工具 guardrail、会话管理、追踪等多个问题，提升了框架稳定性

- 来源：OpenAI Agents Python Releases
- 发布时间：2026-08-05 10:58
- AIWatch 分数：57
- AIWatch 标记：未精选
- AIWatch 链接：https://aiwatch.icu/events/evt_01kz7xtqsf8hwdkrm21b7cwyse
- 原文链接：https://github.com/openai/openai-agents-python/releases/tag/v0.19.4

## 精选理由

常规快讯，保留列表

## AI 摘要

OpenAI 发布了 Agents Python SDK v0.19.4，修复了工具 guardrail、会话管理、追踪等多个问题，提升了框架稳定性。

## 正文

What's Changed

fix: preserve completed tool guardrail results by @seratch in #4180
fix: redact invalid tool argument errors by @seratch in #4182
fix: defer non-stream session saves until output guardrails by @seratch in #4184
fix: honor resolved status before policy checks by @seratch in #4183
fix: cancel sibling work after concurrent failures by @seratch in #4185
fix: surface non-streaming content-filter refusals by @seratch in #4188
fix(mcp): derive streamable HTTP retry backoff from backoffs taken by @rxits in #4174
fix(realtime): clean up failed connection attempts by @seratch in #4189
fix(tracing): mark non-streaming agent span failures by @seratch in #4191
fix(sandbox): enforce token output budgets by @cosin2077 in #3934
fix(sandbox): single-flight cached dependency factories by @seratch in #4178
fix(sessions): enforce closed state in MongoDBSession by @seratch in #4176
fix(sessions): preserve repeated history provenance by @seratch in #4181
fix(sessions): skip conversation creation on empty add_items by @seratch in #4190
fix(sessions): reject reused branch IDs when creating a branch by @seratch in #4186
fix(extensions): preserve streamed provider thinking blocks by @seratch in #4177

Documentation & Other Changes

perf: speed up the test suite by @seratch in #4171
test: make parallel guardrail overlap deterministic by @seratch in #4187
test: make async tool and guardrail tests deterministic by @seratch in #4192
test: make parent cancellation tests deterministic by @seratch in #4193
Release 0.19.4 by @github-actions[bot] in #4194

New Contributors

@rxits made their first contribution in #4174
@cosin2077 made their first contribution in #3934

Full Changelog: v0.19.3...v0.19.4