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openai-python 3.0.0 · HTTPX2 default

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HTTPX2 is the default HTTP client; httpx is no longer installed automatically. Custom HTTPX clients, transports, or config need HTTPX2 equivalents or the temporary runtime legacy escape hatch.3 Read the migration guide before you bump.

Relevant to: anyone who constructs a custom httpx client for the OpenAI SDK

What the verdict meansWill break existing code: deprecation or API change.

Sources

  1. github — openai-python v3.0.0 · read
Originally part of the 12 August 2026 edition.

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