The Courier automations designer has undergone a significant redesign, introducing a new UI built on React Flow that allows for more sophisticated workflows, including branching logic, making it easier to build complex notification delivery workflows. The new UI provides a visual builder and drag-and-drop elements, enabling non-developers with a good understanding of data to design their own notification workflows. This update aims to empower product managers and designers to make changes to the logic without requiring developer intervention, freeing up development time for more feature work. The new UI is more user-friendly, making it easier for users to create and manage automations, and no migration is required from existing users of the old UI.