LangChain Changelog

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December 2024

LangGraph Platform

Custom authentication & access control for LangGraph Platform

Today, we're thrilled to announce Custom Authentication and Resource-Level Access Control for Python deployments in LangGraph Cloud and self-hosted...

December 20, 2024

🔁 Modify graph state from tools in LangGraph

LangGraph's latest update gives you greater control over your agents by enabling tools to directly update the graph state. This is a game-changer for use...

December 18, 2024

🔍 Diff view in LangSmith's prompt hub

We’ve added a new Diff View feature in LangSmith’s Prompt Hub. As prompts evolve, keeping track of changes can get tricky—especially when iterating rapidly....

December 17, 2024

`interrupt`: Simplifying human-in-the-loop agents

Our latest feature in LangGraph, interrupt , makes building human-in-the-loop workflows easier. Agents aren’t perfect, so keeping humans “in the loop”...

December 16, 2024

File attachments with example datasets in LangSmith

LangSmith now supports uploading any binary file (e.g. images, audio, videos, PDF) directly with examples in your datasets. You can now run multimodal LLM...

December 12, 2024

🤖 Command in LangGraph to build edgeless graphs & multi-agent workflows

We've released Command , a new tool in LangGraph that lets you manage dynamic, edgeless agent flows. Now, nodes can dynamically decide which node to execute...

December 10, 2024

LangSmith SaaS LangSmith Self-Hosted

📈 Organization Usage Charts for Self-Hosted Customers

Self-hosted LangSmith customers can now access organization usage charts . Track trace usage across your entire org or by workspace with ease. Upgrade to...

December 10, 2024

🔭 OpenTelemetry support for LangSmith

LangSmith now supports OpenTelemetry, bringing distributed tracing and end-to-end visibility to your LLM observability workflow. Ingest traces in OpenLLMetry...

December 9, 2024

🛠️ LangSmith SDK v0.2: Simplified evaluators and improved performance

We've recently released v0.2 of our LangSmith SDKs (Python and TypeScript) with a number of quality-of-life improvements to make the evals experience more...

December 6, 2024

LangGraph LangGraph Platform

🔍 Semantic search for LangGraph's long-term memory

With semantic search for LangGraph’s long-term memory, your agents can now find relevant memories based on meaning , not just exact matches — making it...

December 6, 2024

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