langchain-core

langchain-ai/langchain

Core Python package in the LangChain ecosystemready

langchain-core is the core package that provides LangChain's common abstractions and fundamental execution components, serving as the foundation for developing LLM applications and agents. Since both developers using LangChain itself and those maintaining higher-level packages and integration libraries depend on this package, its releases directly impact API compatibility and overall ecosystem stability.

langchainlangchain-corepythonllmagentsframework

Choose version

1.6.23w ago

langchain-core langchain-core==1.6.2

Original

Key point

Added async tool support for OpenAI and fixed bugs preventing unwanted content mutation related to Google GenAI and Bedrock

Details

Key Changes

New Feature: The OpenAI integration now supports async tools.

Bug Fixes

Google GenAI: Prevents unwanted mutation occurring in standard content.
Bedrock Converse: Prevents unwanted mutation occurring in standard content.

Dependency Updates

Updates mistune from 3.3.0 to 3.3.3.
Updates tornado from 6.5.7 to 6.5.8.

langchain-core releases | AI Briefing