Apple - Support - Downloads
Apple Beta Software Program Help make the next releases of iOS, iPadOS, macOS, tvOS and watchOS our best yet. As a member of the Apple Beta Software Program, you can take part in shaping Apple software by test-driving pre-release versions and letting us know what you think. If your computer doesn't recognize your iPhone, iPad, or May 15, 2020
iPad | OS X Tips
Mac OS X on the iPad - IGN Oct 21, 2010
With Sidecar, you can use your iPad as a second display that extends or mirrors your Mac desktop. You can also use Apple Pencil to draw and sketch on your iPad while seeing the updates live on your Mac. Learn about Sidecar on YouTube. Screen Time.
iPadOS - Apple Developer Deliver incredible apps for iPad. iPadOS features additional technologies that take advantage of the unique functionality of iPad using the iOS SDK. With iPadOS, your iPad apps can now deliver multiwindow experiences, add full drawing experiences for Apple Pencil, and contribute fonts for systemwide use. Mac OS X on the iPad - IGN Oct 21, 2010