LangChain Changelog

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May 2024

📝 Versioned docs and better structure for LangChain v0.2

We’ve updated our docs for LangChain v0.2 to be separated into: LangChain v0.2 docs walkthrough Check out the new docs in Python and JavaScript , then give...

🚀 LangChain v0.2: Improving the stability and security of the `langchain` package

With the release of LangChain v0.2 , we’ve decoupled the langchain package from langchain-community to improve the stability and security of langchain . With...

🍐 Pairwise Evaluations in LangSmith

For LLM use cases like text generation or chat (where there may not be a single "correct" answer), picking a preferred response with pairwise evaluation can...

🛠️ Personal prompts are now separate from LangChain Hub

Your organization's prompts are now separate from the LangChain Hub. This lets you organize and pull existing prompts by their commit versions — so you can...

🌍 LangSmith is now GDPR compliant

LangSmith — our unified developer platform for building, testing, and monitoring LLM applications — is now GDPR compliant. Security and compliance are...

🔒Role Based Access Control (RBAC) for enterprise customers

Admins can now assign roles to users in their organization with RBAC in LangSmith . Create/edit custom roles with granular permissions to determine who can...

🛠 Regression testing in LangSmith

Check out our video walkthrough and blog to learn more! We also have a few new additional updates in LangSmith:

April 2024

☎️ Standardized Tool Calling in LangChain

You can now create agents that work with any tool calling model. Our new standardized tool calling interface allows you to switch between different LLM...

March 2024

📊 Version-controlled prompts & running prompts over datasets in LangSmith

It’s been a little over 1 month since we GA’d LangSmith, and we’re so grateful for all the new users. We’ve crossed 100k signups Thank you. If you haven’t...

📈 Auto-rendering graph, conditional entry points, and more in LangGraph

We've made several improvements to LangGraph over the past few weeks:

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