Clarifying question on what's new in Vision. I think v3 brings improved face recognition & barcode recognition & previews for those. Optical flow is entirely new, and the UI for text recognition through video is entirely new. Do I have this right? Anything else new in Vision?
Optical flow is not entirely new, there was already a prior revision 1 for optical flow.
You are correct about barcode, but face recognition is not offered by Vision.
You are also correct that the UI for text recognition is new.
Other things new in Vision are a new text recognition revision, and the new functionality in Xcode for Quick Look Preview support. We also deprecated older face detection and face landmarks revisions.