LangChain Upgrade Migration

Overview

Guide for upgrading LangChain versions safely with migration strategies for breaking changes.

Prerequisites

• Existing LangChain application
• Version control with current code committed
• Test suite covering core functionality
• Staging environment for validation

Instructions

Step 1: Check Current Versions

set -euo pipefail
pip show langchain langchain-core langchain-openai langchain-community

# Output current requirements
pip freeze | grep -i langchain > langchain_current.txt