iPadOS 15 is the third major release of the iPadOS operating system developed by Apple for its iPad line of tablet computers. The successor to iPadOS 14, it was announced at the company's Worldwide Developers Conference (WWDC) on June 7, 2021 along with iOS 15, macOS Monterey, watchOS 8, and tvOS 15. It was released to the public on September 20, 2021. It was succeeded by iPadOS 16, which was released on October 24, 2022.
iPadOS 15 is the final version of iPadOS that supports the iPad Air 2 and the iPad Mini 4.
The home screen grid is reduced by one row to accommodate the new widgets when placed (23 icons), and rotates in portrait orientation, just like iOS 12 and earlier.
Widgets can now be placed directly anywhere on the home screen. There are more widgets, many of which now have a new fourth size to pick from, being extra-large.
iPadOS 15 introduces the App Library from the iPhone in iOS 14 to the iPad.
New multitasking user interface allows users to enter split view, slide over, enter full screen with quick gestures. The multiwindow shelf gives quick access to all running apps.
A new feature, called Quick Note, can be taken by swiping from the corner with fingers or the Apple Pencil, the Control Center or a keyboard shortcut.
Safari has been redesigned just like in iOS 15 and macOS Monterey. Safari has tab groups which allow the user to organize tabs into user-defined groups. Users can download third party extensions for Safari in the App Store.
All iPads that supported iPadOS 13 and iPadOS 14 also support iPadOS 15.
The first developer beta of iPadOS 15 was released on June 7, 2021, and the first public beta was released on June 30, 2021, six days after the release of the second developer beta. The second public beta was released on July 16, 2021. iPadOS 15 was officially released on September 20, 2021.
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