OpenAI Codex python-v0.154.0: Python SDK 0.154.0

The Python SDK 0.154.0 adds 'max' and 'ultra' reasoning-effort values, 'ExternalMessage' to synchronous and asynchronous 'run()' and 'turn()' calls, 'include_turns' on resume/fork, and refreshes generated protocol models and notifications.

1 sourceVerified

Sources

primaryrelease_radarverified2026-09-10
Python SDK 0.154.0
github.com

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