LangChain v0.1.0

[hwchase17]

Hi all! We are excited to release LangChain v0.1.0 today. You can read more about the release here: https://blog.langchain.dev/langchain-v0-1-0/

We've also added notebooks focused on the 0.1 release here: https://github.com/hwchase17/langchain-0.1-guides

I wanted to start this discussion topic for several reasons.

First, I wanted to thank everyone for helping make LangChain better, whether through improvements to the docs, adding an integration, or letting us know if something is broken.

Second, I wanted to publicly thank two of our team members @baskaryan and @efriis for leading a lot of this effort. They have put in a lot of hours and I want to give them the thanks they deserve.

Finally, I wanted to answer any questions about v0.1.0. It is fully backwards compatible, but we have updated the docs to reflect the new architecture and design. For example:

• Using .invoke instead of .run
• Using LCEL in more places (or constructor functions)
• Importing integrations from langchain_community or langchain_openai instead of langchain

We very much welcome feedback on all these things (and others) - how they were communicated, any rough edges with them, etc

We know for example that many integration pages use the old way of doing things. We'll work on updating those (and could also use your help with this! - this is a great starter issue: #15664)

So please - let us know what you think! We'll also start a separate discussion thread for 0.2 wishlist/planning!

[coolbeevip]

The latest langchain-experimental 0.0.47 is not compatible with langchain 0.1
Will langchain-experimental version 0.0.48 be released soon?

langchain-experimental 0.0.47 depends on langchain<0.1 and >=0.0.350

[hwchase17]

great callout - yes we will soon

[coolbeevip]

Thank you so much for your prompt response! I truly appreciate your efficiency. I have already noticed the release of version 0.0.48 in the PyPI repository.

[palvarezcordoba]

@hwchase17 @efriis
In pypi there is no README, and it has no homepage. In general, it has no info. First time I saw it I tought it was a malicious package.
https://pypi.org/project/langchain-openai

It took me a long time to find where that package is: https://github.com/langchain-ai/langchain/tree/master/libs/partners/openai

Could you add more info to the pypi page? Including the repo link.

Thanks.

[efriis]

Adding one! It's in this repo in the libs/partners/openai folder

[stevenmilstein]

Is there a tool to help migrate to @langchain/core and @langhchain/community?