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[Release] openai/openai-agents-python v0.19.4: v0.19.4

seratchAug 5, 2026

OpenAI Agents Python v0.19.4 is a maintenance release focused on stability and correctness across tool execution, guardrails, session management, and real-time features. The release includes 16 bug fixes addressing tool result preservation, error handling, concurrent operation cancellation, and streaming content filtering. Additional improvements cover sandbox token budgets, MongoDB session state enforcement, and deterministic test reliability.

  • Tool guardrail results are now preserved through completion, preventing loss of critical execution metadata
  • Invalid tool argument errors are redacted to prevent sensitive information exposure in error messages
  • Non-streaming session saves are deferred until output guardrails complete, ensuring proper state consistency
  • +7 more key points...
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