LangChain 1.0 Alpha

Announcements
1

Hey LangChain Community!

We’re excited to announce that we’ve published the first alpha release for LangChain & LangGraph v1! There are a few key points:

  1. LangGraph is largely the same as before, no breaking changes. We’ve heard good feedback about LangGraph and are excited to move to 1.0
  2. New standard content blocks on messages in LangChain Core. Message formats are evolving, and so is LangChain. Backwards compatible
  3. LangChain itself - high level agents and chains - is greatly changed. You should think of LangChain 1.0 as a new package - focused around a central agent abstraction, built on top of LangGraph
  4. New docs site!

Note that these are alpha releases (and docs), so you can expect some rough edges and breaking changes throughout the alpha period (if you encounter any issues, please open an issue!). We’re working on publishing the stable release for 1.0 in late October. To get started with v1, head on over to the quickstart guide or read the blog post

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I’m excited for v1 and to see how it applies to my application!

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