Thanks for these! I'd seen the latter, and assumed that if the edge detection algo was refined, then it would be available everywhere that it's used. From the other commenter, it seems like maybe not. I wish I'd taken some "before" photos so that I could compare after updating.
https://twitter.com/tobiasdm/status/1007229233104588801
also (from the Halide.app dev):
https://twitter.com/sandofsky/status/1027072222425317376