As usual, MacStories has the full scoop on updates to Workflow. This is timely. I needed a prompt to write up some citation workflows for students I have been playing with. Writing any detail about the release itself is redundant. Viticci has that completely covered,
The marquee addition of this release is full support for drag and drop in iOS 11, which is especially impressive on the iPad as it allows you to trigger actions based on content you drop into a workflow. In the original Workflow, if you wanted to feed external content (text, images, links, videos, etc.) to actions, you had to manually select an item from a native picker, use the iOS clipboard, or use Workflow's action extension in other apps. The system worked well, but it was neither fast nor intuitive.