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

1.7.41w ago

langchain-core langchain-core==1.7.4

Original

Key point

langchain-core 1.7.4 release includes a warning about the upcoming deprecation of Python 3.10 support and a fix for a message mutation bug in the Anthropic translator.

Details

Important Notice: Support for Python 3.10 will be dropped starting from langchain-core 1.8.0 and langchain 1.5.0. As the current minor version is the last to support Python 3.10, please upgrade to Python 3.11 or higher.
Bug Fix: Fixed an issue in the Anthropic translator where message content was being mutated, ensuring data integrity.

langchain-core releases | AI Briefing