In the App Store; there is a massive amount of Apps that have not yet been updated to support Mavericks. Really annoys me when I see lazy developers (even the likes of Rockstar have not updated their apps).
There is a LOT of games on the App Store where people are saying in the comments that it suddenly doesn't work when they updated to Mavericks. CCleaner on the App Store no longer works...
There is a LOT of games on the App Store where people are saying in the comments that it suddenly doesn't work when they updated to Mavericks. CCleaner on the App Store no longer works...
It takes time and resources to update. I'm sure they'd rather take the time to work on it so that when the release an update it works smoothly. They're not just going to rush updates out the door before they're ready. Plenty of apps are updated, and those that aren't, there's probably a reason.