According to the latest TestFlight / iTunes Connect release notes https://developer.apple.com/testflight/release-notes/ we can now send iOS 10 beta apps to internal testers. However, when I upload through the latest Xcode 8 beta I receive this error:
ERROR ITMS-90512: "Invalid sdk value. The value provided for the sdk portion of LC_VERSION_MIN_IPHONEOS in <app name>.app/<app name> is 10.0 which is greater than the maximum allowed value of 9.3."
How do I get an app to Testflight? 😕