OpenAI Python SDK releases · September 8, 2026 · 1 min read

v3.9.0

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3.9.0 (2026-09-05)

Features

api: Add prompt cache diagnostics (#3800) (8326784)
api: correct function argument completion event fields (openapi-545) (#3801) (2a98f6a)

Bug Fixes

api: accept incomplete web search call statuses (#3786) (3cc8d78)
refuse overflowing server retry delays (#3799) (88b4d43)

Chores

api: document throttling and model overload responses — SDK-235 (#3803) (be92815)
migrate to forked steady (#3795) (b24aeda)

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