Apple on Monday released a new beta for developers, bringing the latest version to iOS beta 6. If you have the beta installed, you can download the update by going to Settings > General > Software Update. You can also get the update from Apple’s Developer Web site.
Apple releases iOS 10 beta 6
This update is developed for bugs mostly. I found some new features which you can check in the link /ios/ios-10-beta-6-whats-new/