According to the latest revelations, the next upgrade of Appleās iPad and iPhone operating system will be launched in June 2019 in WWDC. The World-Wide Developer Conference (WWDC) is expected to begin on the 3rd of June 2019 in San Jose.
The Beta version of IOS 13 for the app developers will be released after the announcement. The public Beta version, which will be available to all, will be available a bit later. The final public version of the iOS 13 upgrade is expected somewhere around September 2019.
Devices including the Apple iPhone 5S, 6, 6 Plus, 6s, 6s Plus, 7, 7 Plus, 8, 8 Plus, iPhone X/XS/XS Max/XR and the iPod Touch will be running this new update. The update will also be available on iPad Pro 10.5/11/12.9/2017/2018 versions and for iPad Mini 2/3/4 versions.
For the iOS 12 upgrade, Apple gave more priority to the bug fixes and stability improvement and therefore many of the planned and new features of iOS 12 were postponed and will be present in the iOS 13.