According to reports, iOS app updates are not appearing on iTunes for Mac. They do appear on the mobile devices.
It’s unclear why this is, but website TUAW says that this seems to have been going on for almost a week (since last Tuesday, to be exact.). For many of us, this probably goes relatively unnoticed, thanks to the automatic updates of iOS 7. Even if they’re not set for automatic updates, many of us just update direct through our iOS devices.
We aren’t experiencing the issue, but it seems to be widespread enough to be getting some attention. For instance, a thread on Apple’s forums has several replies, and many of them are users experiencing this issue. Let’s hope that Apple can get it fixed so people can start updating their apps.