Sidecar, a feature in macOS 10.15 Catalina that can turn an iPad into a second monitor for a Mac, may be limited to only a small selection of newer Macs at first, with the first beta of the operating system preventing it from being used on a large number of older Macs.
Introduced on Monday as part of macOS Catalina, Sidecar is a feature of both macOS and iPadOS that extends the macOS desktop to the iPad’s display. Able to be used both via a cable and wirelessly, the feature can make the iPad a mirrored display or a second screen, including effectively turning it into a graphics tablet when used with the Apple Pencil.
On Wednesday, developer Steve Trougton-Smith posted to Twitter the results of an exploration of the first macOS Catalina developer beta, including a list of devices that Sidecar will be supported on, as well as a blacklist for other hardware.
Read more at AppleInsider.com