LangGraph4j 1.9.0 is out! LangGraph4j 1.9.0 is out! With the 1.8.x release stream now in LTS, development moves forward on 1.9 with improvements to streaming, persistence, and the infrastructure for building agents in Java. This release is an important step toward workflows that are easier to follow while they run and easier to inspect after they finish. A node can now report progress output before returning its result, checkpoint savers have a richer execution lifecycle, and Stud...