Apple has released the downloads for iOS 13 beta 4 and iPadOS 13 beta 4 to developers involved in the iOS and iPadOS beta system software testing programs.
iOS 13 and iPadOS 13 include many new interesting features for iPhone, iPad, and iPod touch, including a new dark interface theme, a redesigned Photos app, a new Find My app that helps you find your devices and your friends or family, new features to Reminders and Notes, new multitasking features for iPad, and much more.
Typically a new developer beta build is released first and soon followed by the accompanying build as a public beta that is versioned a number behind, for example iOS 13 beta 4 is usually iOS 13 public beta 3 but sharing the same build, in this case 17A5534f. The corresponding iOS 13 and iPadOS 13 public beta 3 builds are also available to download now.
Users enrolled in the iOS 13 and iPadOS 13 beta testing programs can download the latest versions now from the Settings app > General > Software Update.
iOS 13 beta 4 is available to iPhone and iPod touch, whereas iPadOS 13 beta 4 is available for iPad.
Separately, MacOS Catalina Beta 4 is available for Mac beta testers as well. New beta updates to watchOS 6 and tvOS 13 are also available for users participating in those beta programs.
Technically anyone can install the developer beta builds if they have access to the developer beta profile, but a better choice for curious users who wish to try out iOS 13 and iPadOS 13 is by enrolling in the public beta testing programs. You can learn how to install iOS 13 public beta on iPhone here and you can learn how to install iPadOS 13 public beta on iPad here.
Beta system software is notoriously buggy and often incompatible with existing software and thus is only appropriate for advanced users, and ideally on a secondary device. If you’re running iOS 13 beta and find it too buggy or problematic, you can downgrade iOS 13 beta back to a stable iOS 12 release if necessary.
Apple has said that iOS 13 and iPadOS 13 will debut to the general public in the fall.