Overview of the latest features in Flow v0.14

José Valim discusses the new features in Flow v0.14, focusing on improvements that provide more control over data emission and accumulation. The article starts with a recap of Flow, an Elixir library for computational parallel flows built on GenStage. It explains the new functionalities such as explicit control over reducing stages, the on_trigger/2 callback, and the emit_and_reduce/3 function. Examples are provided to illustrate the practical benefits of these improvements, such as handling unbounded data streams with windows and triggers. Valim also touches on how these changes lead to clearer and more maintainable code.