LangChain Changelog

Sign up for our newsletter to stay up to date

Oops! Something went wrong while submitting the form.

Powered by LaunchNotes

Loading...

February 2025

⚖️ Start Evaluating LLMs with OpenEvals

Evals are a vital part of bringing LLM apps to production. To make it easier to get started, we launched a new OSS repo: OpenEvals ! OpenEvals contains...

February 26, 2025

📊 Group LangSmith experiments by metadata to get valuable insights

We’ve added a new view that allows you to group experiment results by metadata. Compare the performance of your evaluations across different segments (eg....

February 25, 2025

useStream for integrating LangGraph for your React app

You can now integrate LangGraph into your React application with a single hook. Thread and state management, messages streaming and branching built-in. See...

February 21, 2025

Saved workspace secrets in LangSmith Playground

You can now use secrets saved in your workspace in the LangSmith Playground. Teams can use the same centralized keys used for evaluators to also experiment...

February 20, 2025

LangMem SDK for long-term agent memory

The LangMem SDK is a lightweight Python library that helps your agents learn and improve through long-term memory. It provides tooling to extract information...

February 20, 2025

LangSmith LangGraph

LangSmith Playground integration with LangGraph Studio

You can now open LLM runs from LangGraph Studio in the LangSmith Playground, making it easier to debug, visualize, and refine your agents. This is an early...

February 8, 2025

📊 New LangSmith experiment view for result analysis

The new LangSmith experiment view is now live, which makes it easier to explore your results. Use the experiment view to analyze the results and draw...

February 4, 2025

January 2025

Waterfall graphs to spot latency bottlenecks in LangSmith

You can now visualize traces as a waterfall graph for deeper insights into your app’s latency in LangSmith. Use the waterfall graph to: Try it out today:...

January 30, 2025

Functional API for LangGraph

LangGraph’s powerful state management— including short- & long-term memory, human-in-the-loop, and time travel — just got even more flexible. With the new...

January 29, 2025

Pytest and Vitest integrations for evaluations in LangSmith

Evaluations (evals) are crucial for building reliable, high-quality LLM applications. They ensure consistent performance, much like tests in software...

January 22, 2025

Jump to Month: April 2025; March 2025; February 2025; January 2025; December 2024; November 2024; October 2024; September 2024; August 2024; July 2024; June 2024; May 2024; April 2024; March 2024; February 2024; January 2024; December 2023; November 2023; October 2023

Powered by LaunchNotes