I downloaded Xcode 6 GM and submitted two Swift apps to the app store today. Both passed all pre-upload verification and all the other stuff they had to pass and were succe
In Xcode, look in Build Settings for “Strip Debug Symbols During Copy” (COPY_PHASE_STRIP). When enabled, debug symbols are omitted from your .app and placed into a .dSYM file. Otherwise your .app contains these symbols. (By default, debug symbols are stripped from release builds for reasons of obfuscation. You probably shouldn’t change this setting for the release configuration.)
Make sure you check this option in project Build Settings
https://possiblemobile.com/2015/03/symbolicating-your-ios-crash-reports/