https://techcrunch.com/2023/03/27/apple-discusses-ipados-16-4s-new-pencil-hover-features/

In October of last year, Apple announced that hover was being added to the Apple Pencil’s bag of tricks. What might sound like a minor update to non-artists represents an important addition to workflow. While digital drawing is more forgiving in terms of correcting errors than its real-world counterpart, stopping and starting is still an extremely frustrating dimension that can ultimately hamper the creative process.

Hover adds the ability to preview lines before committing them to a piece. By hovering a Pencil 2 up to 12 millimeters above the new iPad Pro (Apple notes that it’s the M2 that makes the feature possible, hence the limited hardware options), the system offers line and line width and color previews, along with the ability to choose drawing implements in Markup.