LangChain Changelog

Sign up for our newsletter to stay up to date

Oops! Something went wrong while submitting the form.

Powered by LaunchNotes

Loading...

June 2024

🛝 Custom models in LangSmith Playground

Once you’ve deployed a model server, use it in the LangSmith Playground by selecting either ChatCustomModel or the CustomModel provider for chat-style model...

🥷 PII Masking in LangSmith

LangSmith SDK versions now have enhanced PII masking capabilities. You can easily create anonymizers by specifying a list of regular expressions or providing...

📁 Workspaces in LangSmith for improved collaboration & organization

LangSmith now offers Workspaces to separate resources for different teams or different environments. Admins can add users to Workspaces, granting them...

🗺️ Variable mapping for online evaluator prompts

In LangSmith, you can now use any structured prompt from the LangChain Hub with customizable variables. You can personalize your inputs based on recent runs...

🛝 Enter the playground from scratch instead of from a trace or a prompt

The Playground is now its own tab in the sidebar of LangSmith. To create a new prompt , simply craft a prompt in the empty playground and click "Save As" to...

💬 Chat LangChain improvements

Users can now view and continue previous chats in Chat LangChain , our chatbot for LangChain Python docs and API reference. These improvements were made...

🧬 Build generative UI applications with LangChain in JavaScript/TypeScript and Python

Using streaming agent events and tool calls to pick pre-built components, you can now use generative UI to improve your chatbot with interactable components....

May 2024

💬 Manage private prompts without a handle

We’ve improved our SDK and LangSmith Prompts UI to make navigating prompts simpler. Now, only public prompts require a handle on creation. New accounts won’t...

🔧 Off-the-shelf online evaluator prompts to catch bad retrieval and hallucinations for RAG

LangSmith’s online evaluator (LLM-as-judge) automatically runs on production traces with a customizable prompt and automation rules. Our new off-the-shelf...

🔁 Repetitions to build confidence in your experiment results

You can now run multiple repetitions of your experiment in LangSmith. This helps smooth out noise from variability introduced by your application or from...

Jump to Month: 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