"Hey Siri" support and possibly wireless charging case alongside AirPower charging mat.
Apple Seeds Eighth Beta of iOS 10 to Developers and Public Beta Testers
iOS 10 beta 8 is available as an over-the-air download to those who installed the first seven betas or the beta configuration profile and it's available for direct download via Apple's Developer Center (developers only).
iOS 10 is a major iOS update with a ton of new features and design tweaks, including a new Lock screen experience with 3D Touch-enabled notifications, a more easily accessible camera, a redesigned Control Center, and a new widgets screen. According to Apple, iOS 10 is the company's biggest iOS update ever released.
The Messages app in iOS 10 has been overhauled with features that include background animations, bubble effects, Digital Touch, handwritten notes, Tapback replies, predictive emoji, and a dedicated App Store, and Photos has gained new facial and object recognition capabilities along with a Memories feature for rediscovering forgotten moments.
iOS 10 is currently available to developers and public beta testers, with a full public release planned for the fall. iOS 10 beta 8 is likely to be the last update before the golden master version is released as Apple will need time to finalize the software before its public launch. For full details on iOS 10, make sure to check out our iOS 10 roundup.
Update: Many users appear to be running into an error when attempting to download the new beta, getting an "Unable to Check for Update" popup.