release: 3.16.0 (#3893)

Automated Release PR
---


##
[3.16.0](https://github.com/openai/openai-python/compare/v3.15.0...v3.16.0)
(2026-09-18)


### Features

* **api:** add webhook endpoint management
([#3892](https://github.com/openai/openai-python/issues/3892))
([9a11f6e](https://github.com/openai/openai-python/commit/9a11f6e874292230633073fb64ea6202ad22a1df))


### Chores

* **api:** deprecate MCP connector_id
([#3894](https://github.com/openai/openai-python/issues/3894))
([1ccaf07](https://github.com/openai/openai-python/commit/1ccaf07fb9a4d1a2be9d97c77604ce75214a9940))

---
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