openai-python shipped four releases on one day and deprecated the MCP connector_id
GitHub·medium signal
On 2026-09-18 openai-python went 3.15.0 to 3.16.2. 3.16.0 adds webhook endpoint management and deprecates MCP connector_id; 3.16.1 stops loading unrelated API resources on first use; 3.16.2 drops TextFormatT parameterization in parse_response to fix a memory leak. Two of the four are corrections to the same day's earlier releases, so pin to 3.16.2 rather than anything in between if you use the structured parse path.