Obsolete, no longer receiving security updates, because all iPads that supported iPadOS 13 support iPadOS 14 and iPadOS 15 as well. Partial third-party app support. Drops support for all A7 chips, including the iPad Air (1st generation), and the iPad Mini 2 and 3.
iPadOS 13 is the first major release of the iPadOSmobile operating system developed by Apple Inc. for their iPad line of tablet computers. The successor to iOS 12 on those devices, it was announced at the company's 2019 Worldwide Developers Conference (WWDC) on June 3, 2019,[8] as a derivation from iOS, with a greater emphasis on multitasking and tablet-centric features. It was released on September 24, 2019. It was succeeded by iPadOS 14, released on September 16, 2020.