# format_sdk_release_age

> **Function** in `deepagents_code`

📖 [View in docs](https://reference.langchain.com/python/deepagents-code/update_check/format_sdk_release_age)

Return a human-readable age for SDK `version` (e.g., `'released 3d ago'`).

May trigger a single PyPI fetch on cache miss (3s timeout). Returns an
empty string on any failure so callers can concatenate unconditionally.

## Signature

```python
format_sdk_release_age(
    version: str | None,
) -> str
```

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[View source on GitHub](https://github.com/langchain-ai/deepagents/blob/a98f0dfa8d534d8a1885b524632400e52db22ac6/libs/code/deepagents_code/update_check.py#L562)