After downloading this update, doing a "Get Info" on the Aperture application still returns version 2.1.2 on my machine. But when I open the app, the splash screen shows 2.1.3.
Uncharacteristic oversight by Team Apple.
Oops, on a whim I decided to perform a "Quit Finder" and upon restarting the Finder I see "Get Info" now shows version 2.1.3. So the problem was on my end...late '08 MBP slow to update its database.
Apple Aperture
Post production tool for photographers.
Version: 2.1.4