Today, Apple has released the 5th developer beta of iOS 9 to all developer account holders.
The update comes as as Software Update to your iOS device which can be found in Settings > General > Software Update.
As of right now, there isn’t any telling what the new beta will bring to your iOS device. The last betas have brought significant improvements and features to the iOS 9 experience, so expect those same results with this beta as well.
All developers can download the latest build by visiting the Software Update tab in Settings > General.