LangChain Changelog

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August 2024

🛝 LangSmith Playground v2: More models, better compatibility, faster testing

Thousands of engineers use the LangSmith Playground as their IDE for prompt engineering. Now, we’ve made the Playground even better — here’s what’s new:...

August 21, 2024

🪄 Generate synthetic examples to enhance a LangSmith dataset

You can now generate synthetic examples for your datasets in LangSmith. Using the dataset schema you've defined, we generate new examples based on existing...

August 15, 2024

☁️ 🤖 LangGraph Cloud is available in open beta

LangGraph Cloud is now available in open beta. LangGraph Cloud lets you build fault-tolerant, scalable agents. You can: All LangSmith users on Plus and...

✔️ LangGraph v0.2: Increased customization with new checkpointers

We've released LangGraph v0.2 for increased customization with new checkpointer libraries. LangGraph v0.2 allows you to tailor stateful LangGraph apps to...

🚀 Few-shot examples with LangSmith datasets

LangSmith now supports fast, easy-to-use APIs to find few shot examples from your datasets, which you can use to improve your LLM applications without...

🚀 LangGraph Studio: The first agent IDE

LangGraph Studio offers a new way to develop LLM applications by providing a specialized agent IDE that enables visualization, interaction, and debugging of...

🏃 Trace comparison view & saving custom trace filters

In the runs table in LangSmith, you can now select traces to compare side-by-side. This lets you make direct comparisons to see discrepancies in output...

📊 Define, validate, and update dataset schemas in LangSmith

When building a dataset iteratively for an LLM app, having a defined schema for testing across examples lets you avoid broken code and keep your data clean...

July 2024

✍️ Multiple annotators can review a run in LangSmith

LangSmith's annotation queue now supports allowing multiple people to review an individual run. This makes it easier to coordinate data review across...

🔧 Improved Pydantic 2 support with LangChain tool APIs

LangChain APIs now allow using Pydantic v2 models for BaseTool and StructuredTool . This can enhance type safety, improve code readability, and simplify the...

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