●Change8

Migrating to OpenAI Python SDK v1.99.4

Version v1.99.4 introduces 1 breaking change. This guide details how to update your code.

Released: 8/8/2025

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Breaking Changes
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Migration Steps
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Affected Symbols

⚠️ Check Your Code

If you use any of these symbols, you need to read this guide:

ChatCompletionToolParam

Breaking Changes

●Issue #1

ChatCompletionToolParam has been reverted from a class back to a TypedDict, which may affect code relying on class-based instantiation or inheritance.

Migration Steps

  1. 1
    Ensure any manual instantiations of ChatCompletionToolParam use dictionary syntax rather than class constructors if errors occur.

Release Summary

This patch release focuses on type definition fixes, specifically reverting ChatCompletionToolParam to a TypedDict and renaming internal chat completion tool types.

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View the full release notes and all changes for OpenAI Python SDK v1.99.4.

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