# OpenAI Python SDK v3.5.0

- Product: OpenAI Python SDK (https://whatsnew.fyi/product/openai-python)
- Vendor: OpenAI
- Date: 2026-08-27
- Version: v3.5.0
- Original notes: https://github.com/openai/openai-python/releases/tag/v3.5.0
- Permalink: https://whatsnew.fyi/product/openai-python/releases/v3.5.0

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- **changed** — Make function call output call IDs optional

##### [3.5.0](https://github.com/openai/openai-python/compare/v3.4.0...v3.5.0) (2026-08-27)


###### Features

* **api:** make function call output call IDs optional ([#3738](https://github.com/openai/openai-python/issues/3738)) ([c74501d](https://github.com/openai/openai-python/commit/c74501d7dc6946633fead7883ad02d8a188cf605))