LangGraph Postgres Checkpoint

langgraph-checkpoint-postgres provides a robust PostgreSQL implementation of LangGraph's checkpoint saver interface. This allows LangGraph agents to persist their conversational state and execution history in a Postgres database, enabling fault tolerance and the ability to resume graphs from previous states. Currently at version 3.0.5, it follows the rapid release cycle of the broader LangChain/LangGraph ecosystem, with frequent updates tied to `langgraph`'s release schedule.