The first time you open the Mac App Store in OS X Yosemite, it checks for installed versions of these apps that came with your computer, or that you installed from a disc:
- Aperture 3
- iMovie '11
- Pages '09
- Numbers '09
- Keynote '09
- Apple Remote Desktop 3.x
When these apps are found, newer versions are listed in the Updates pane of the Mac App Store. After you sign in, these apps are added to your account. You can then update to the newer versions of these apps available for your Mac.
If the list of updates doesn't display all of the app updates you expect, first install any updates that are listed, including OS X updates. Then check the Updates pane again to see if a newer version of the app you're looking for appears.
If you still don't see app updates listed, check Spotlight preferences. If your startup disk or Applications folder are excluded in System Preferences > Spotlight > Privacy, the updated apps may not be available in the Updates pane.
If the apps installed on your computer are older than the versions listed in this article, you can purchase current versions of these apps from the Mac App Store.