Third beta versions of iOS 13, iPadOS 13, watchOS 6, macOS Catalina, and tvOS 13 are now available as an over-the-air update after installing developer profiles from Apple’s developer portal ,IOS 13 BETA 3 RELEASE DATA

Are you a thrill seeker testing Apple’s pre-release software and dealing with beta 2 life? Good news! It’s time to move on to beta 3 life in search of more stability and performance improvements. Apple will release iOS 13 beta 3 to registered developers later today, allowing developers to test their apps against a slightly more complete version of iOS 13.
We expect iOS 13 beta 3 to be the same build as iOS 13 public beta 2. That build will likely focus more on eliminating any show-stopping bugs to allow more testers to run Apple’s pre-release software before it’s officially released in the fall.
We also expect iPadOS 13 developer beta 3, watchOS 6 developer beta 3, tvOS 13 developer beta 3, and macOS Catalina developer beta 3 to be released today. Developer beta 2 required updating over a USB connection with iTunes or macOS Catalina; today’s release will include support for profiles and updating over-the-air, iOS 13 Beta 3 will be Available Next Week.