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@github-actions github-actions bot added langchain For docs changes to LangChain python For content related to the Python version of LangChain projects oss javascript labels Nov 20, 2025
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@lnhsingh lnhsingh left a comment

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I can do a more thorough review once we have more content in if needed

"group": "Releases",
"pages": [
"oss/python/releases/langchain-v1"
"oss/python/releases/langchain-v1",
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let's order this newest to oldest

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also, can you remove the /releases/langchain-v1 from the langchain tab?

i think the release notes should live in the Reference tab and we can keep the migration guide on the main tab


## See also

- [Versioning](/oss/python/versioning) - Understanding version numbers
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maybe these should be combined w the "Additional resources" section?


**LangChain v1.1 focuses on improving agent reliability and flexibility.** This release introduces model profiles, new middleware capabilities, and enhanced type safety for custom middleware implementations.

To upgrade,
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Suggested change
To upgrade,
To upgrade:


**LangChain v1.1 focuses on improving agent reliability and flexibility.** This release introduces model profiles, new middleware capabilities, and enhanced type safety for custom middleware implementations.

To upgrade,
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Suggested change
To upgrade,
To upgrade:

</Card>
</CardGroup>

## See also
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combine with additional resources section?

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@ccurme ccurme left a comment

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My own bias is it's overkill to have separate documents for every release.

I think there will be circumstances where we don't want to batch changes (e.g., we want to quickly make a semver-minor change to langchain or langchain-core to unblock something). Are we OK having a page that's a single line of text describing it?

I like OpenAI's changelog: https://platform.openai.com/docs/changelog

This is a single page with bullets hitting what's new at a high-level and linking out to more detailed docs.

I'm OK to ship this and compile into a a single page later if preferred.


## Reporting issues

Please report any issues discovered with v1.1 on [GitHub](https://github.com/langchain-ai/langchain/issues) using the [`'v1.1'` label](https://github.com/langchain-ai/langchain/issues?q=state%3Aopen%20label%3Av1.1).
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personal opinion / feeling but I don't feel the need to ask people to label all their issues with the corresponding version— don't we ask for this information in the issue template?


**LangChain v1.1 focuses on improving agent reliability and flexibility.** This release introduces model profiles, new middleware capabilities, and enhanced type safety for custom middleware implementations.

To upgrade,
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I don't think we need to spell out installation instructions for every minor release.


Chat models now expose supported features and capabilities through a `.profile` attribute. These data are derived from the [models.dev](https://github.com/sst/models.dev) project, an open source initiative that provides model capability data, and are augmented with additional fields for purposes of use with LangChain.

See details in the [models](/oss/langchain/models#model-profiles) guide.
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I pushed some broken links here, they should resolve when we merge #1568. We will need to merge that and update this branch.

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5 participants