# get_langchain_core_version

> **Function** in `langsmith`

📖 [View in docs](https://reference.langchain.com/python/langsmith/env/_runtime_env/get_langchain_core_version)

## Signature

```python
get_langchain_core_version() -> Optional[str]
```

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[View source on GitHub](https://github.com/langchain-ai/langsmith-sdk/blob/7bb930874ab88cd4791c463ee0f4d51a5e451fd3/python/langsmith/env/_runtime_env.py#L96)