Apple has recently roll out iOS 10 Beta 5 and its for current Beta 4 users, its an over-the-air (OTA) update.
iOS 10 Beta 5 Features:
- Apple ID password login is no longer required following a reboot for App Store purchases
- New lock sound and enhanced keyboard sounds
- Devices will no longer "panic" when using iPhone 6s Smart Battery Case
- Third party apps are now able to play Music even if the Music app has been removed
- No more dropouts using Bluetooth LE-based hearing aids with an iPhone that's also paired with an Apple Watch After enabling speaker during a call, subsequent calls will no longer use speaker by default
- Pass update banners will no longer fail to show unless previous pass notifications are first cleared from Notification Center
- Easier camera launch from the lockscreen