The iPad is getting a big refresh this year: Apple just announced the new version of iPadOS, its tablet operating system, at WWDC. (The keynote is still going, actually; Apple dropped its press releases before they were technically announced in the virtual event. We’ll keep updating this post as Apple gets to the announcements.) The flagship feature is a new windowing system for multitasking across apps, but there’s also a new Files app, more Apple Intelligence features, and a Mac-like Preview a...