iOS 13 is the thirteenth major release of the iOS mobile operating system developed by Apple Inc. for their iPhone, iPod Touch, and HomePod lines. The successor to iOS 12 on those devices, it was announced at the company's Worldwide Developers Conference (WWDC) on June 3, 2019 and released on September 19, 2019. It was succeeded by iOS 14, released on September 16, 2020. As of iOS 13, the iPad lines run a separate operating system, derived from iOS, named iPadOS. Both iPadOS 13 and iOS 13 dropped support for devices with less than 2 GB of RAM.