LangChain v0.1.0

[jacoblee93]

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/

(Adapted from the original post from @hwchase17 here: langchain-ai/langchain#15712)

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, to thank @bracesproul for setting up new API reference docs that will be more prominently featured and for migrating other docs pages to use the new imports and syntax!

Finally, to answer any questions about v0.1.0. It is fully backwards compatible, but we have updated the main docs pages 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 some integration pages may use the old way of doing things. We'll work on updating those (and could also use your help with this!

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