It seems that binaries on the DTK are built for arm64e architecture, as you can see : % lipo -info /bin/ls Architectures in the fat file: /bin/ls are: x86_64 arm64e However, when I try to build binaries for arm64e it doesn't seem to work. Take this sample program: #include <stdio.h> int main() { printf("Hello ARM\n"); return 0; } Compiling it for either arm64 or arm64e works fine, but I can only run the arm64 version: % clang -arch arm64 main.c && ./a.out  Hello ARM % clang -arch arm64e main.c && ./a.out zsh: killed     ./a.out I don't know why the arm64e version is killed, I couldn't find anything suspicious in the logs. Apple's docs don't seem to mention any differences between arm64 and arm64e, but since they build things for arm64e I assume that is what we should do too?

I've tried to use AppTransaction.shared / AppTransaction.refresh() to verify that my app has been purchased from the Mac App Store. It works when testing a release build on my Mac, using a Sandbox Apple ID. But when I submit the app for review, the reviewer says it doesn't work. The error message returned by AppTransaction is "Unable to Complete Request", which is pretty vague. I get the same error when I try to use a real Apple ID for testing on my machine, so I have been wondering if maybe the problem is that App Review is testing a build that doesn't accept Sandbox Apple IDs? My app doesn't have a provisioning profile, could it be that this is the problem? As a Mac app developer, I'm not sure what provisioning profiles are good for, I thought they were only useful for iOS. Has anybody successfully submitted a Mac app that uses AppTransaction?