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:

• 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 to the Mac App Store with your Apple ID, 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 Then check the Updates pane again to see if a newer version of the app you're looking for appears.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 your Spotlight preferences. From the menu bar at the top of your computer screen, choose  > System Preferences > Spotlight > Privacy. If your startup disk or Applications folder are in this list, the updated apps might not be available in the Updates pane.

If the apps installed on your computer are older than the versions listed above, you can purchase current versions of these apps from the Mac App Store.