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 LangGraph Cloud

☁️ 🤖 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...

LangSmith LangGraph

🚀 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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