release
OpenAI SDK v3.0.0
August 12, 2026
Version 3.0.0 (2026-08-12) makes HTTPX2 the default HTTP client and stops installing httpx automatically, with a temporary runtime-only legacy HTTPX escape hatch for compatibility. The breaking change matters because apps using custom clients, transports, or config objects must migrate to HTTPX2 equivalents, making this a required API update rather than a simple dependency bump.
3.0.0 (2026-08-12) ⚠ BREAKING CHANGES api: HTTPX2 is now the default HTTP client, and httpx is no longer installed automatically. Applications using custom HTTPX clients, transports, or configuration objects must migrate to their HTTPX2 equivalents or use the temporary, runtime-only legacy HTTPX escape hatch. See the HTTPX2 migration guide . Features api: migrate to HTTPX2 ( #3594 )
Source: github.com