AI updates
LangGraph 0.2: pluggable checkpointers for durable agents
LangGraph v0.2 split state persistence into dedicated checkpointer libraries (in-memory, SQLite and an open-sourced Postgres version) for session memory, error recovery and human-in-the-loop.
- A checkpointer saves graph state after each step, which enables memory across sessions, recovery from errors and pausing for a human.
- The Postgres checkpointer used in LangGraph Cloud was open-sourced.