Hi there!
I was wondering if there is going to be an update of the books soon for the new version of ARKit → 3? I am interested in looking into Collaborative Sessions and other new features such as RealityKit.
@jossba Please check out the updated version of the book when you get a chance:
https://store.raywenderlich.com/products/apple-augmented-reality-by-tutorials
I hope it helps!