Both my Target and Project Build Settings are set to arm64 armv7 armv7s as the valid architectures.
When I archive and upload the build, iTunes Connect classifies it as only arm64. Under "Supported Architectures", iTunes Connect shows only arm64. This makes it so my app is not available to older devices (iPhone 5, iPad 2, iPad Mini 1, etc)
Has anybody ever come across this before? I'm supporting armv7 in Xcode settings, but that support is not being included in the build I am archiving.
I suspect you are building the active architecture only.
To fix this set Build Active Architecture Only to NO for Release configuration.