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Dan Moren for Macworld
November 20, 2015 7:23 PM PT
“‘Reeder’ is damaged and can’t be opened. Delete ‘Reeder’ and download it again from the App Store.”
That, and messages like that, were what I and plenty of other users were greeted with last week when an oversight led to difficulty launching apps purchased from the Mac App Store. The root of the problem turned out to be a change in the cryptographic certificates that ensure the safety and security of programs from the Mac App Store. Not all Macs handled the switch elegantly, leading to fixes ranging from restarts to deleting and reinstalling apps.
In the grand scheme of things, perhaps not a world-shaking problem. But this issue did throw into stark relief that the Mac App Store doesn’t receive nearly the kind of attention lavished on its iOS counterpart. Mac developers have been frustrated with many limitations of the store for years, and it certainly doesn’t seem to be getting a lot of attention from Apple.