A few days ago i wrote a post about how we use the LangGraph checkpointer to optimize storage. Today, LangGraph released v1.2 with a really …

A few days ago i wrote a post about how we use the LangGraph checkpointer to optimize storage. Today, LangGraph released v1.2 with a really nice feature: DeltaChannel, a new channel type that stores only incremental deltas at each step instead of re-serializing the full accumulated value. Really happy to see this, it’s going to be very useful for us! Congrats to the team on the incredible shipping pace!! langgraph is the runtime that powers langchain and deepagents! we've been cooking on some new features: 1. node level error handlers 2. static + dynamic node timeouts 3. delta (diff based) channels for optimized storage 4. tons of new streaming primitives our 1.2 alpha release is…

Source: Harrison Chase (X) | 2026-05-05