https://wccftech.com/download-ios-13-beta-4-ipados-beta-4/

It’s finally here. iOS 13 / iPadOS beta 4 is now available for all iPhone and iPad developer right now as an over the air update.

Those waiting for a new iOS 13 or iPadOS 13 beta will be pleased to learn that beta 4 of the software has finally arrived. The update, as usual, features bug fixes and performance enhancements which should help a ton in ironing things out for those who use the software on their daily driver devices.