HTTPX2 is now the default, httpx no longer auto-installed
Google API client migrates to HTTPX2 as its default HTTP client in v3.0.0, dropping auto-installation of httpx and requiring manual migration for custom transports or configurations.
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)
- github.comOpenAI SDK (Python) v3.0.0primary