LangChain Changelog

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May 2024

✂️ Dataset splits for evaluation and filtering/editing dataset examples

With dataset splits, it's easier to run evaluations on a subset of your data in LangSmith. You can tag examples with different split names , edit and add to...

📞 Multi-modal function calling in JavaScript

In our @langchain/google-genai or @langchain/google-vertexai packages, we’ve added function calling with structured output, which allows you to build more...

📝 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...

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