LangChain Changelog

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December 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

🖊️ Annotation rubrics for guided annotation workflows

We're thrilled to announce Annotation Rubrics , our latest LangSmith feature designed to streamline guided annotation workflows. Whether you're collaborating...

December 4, 2024

🛝 Saving model configurations in LangSmith's Playground

We’ve updated the LangSmith Playground to make saving and managing model configurations simple. You can easily reuse your preferred settings across sessions,...

December 4, 2024

November 2024

🪄 Redesigned LangSmith product homepage & resource tags for organization

We've redesigned the LangSmith product homepage and made enhancements to Resource Tags for improved organization within your workspaces. The homepage is now...

November 19, 2024

🖊️ Upload images, audio, video, and PDF files with LangSmith traces

LangSmith now supports uploading arbitrary binary files (such as images, audio, videos, and PDFs) with your traces. This is especially useful for building...

November 15, 2024

🎨 Prompt Canvas for streamlined prompt engineering

Prompt Canvas is our new interactive tool in LangSmith that streamlines the process of creating and optimizing prompts by collaborating with an AI agent....

November 12, 2024

October 2024

🚀 LangGraph Platform: New deployment options for agent infrastructure

We've rebranded our service for deploying agents at scale as LangGraph Platform (formerly known as LangGraph Cloud). LangGraph Platform provides With...

October 31, 2024

🏷️ Prompt tags in LangSmith for version control

We’re excited to introduce Prompt Tagging , a new feature in LangSmith that allows users to label individual commits with version tags (e.g., "dev",...

October 23, 2024

📦 Bulk data export from LangSmith for offline analysis

LangSmith now supports bulk data exports, now available in beta for LangSmith Plus and Enterprise plans. If you need to analyze your trace data offline in an...

October 23, 2024

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