When you package an update for the latest version of some of the applications, you can apply the package to a system that does not already have the base version of the application installed. You can identify such apps with the icon (). For a list of such applications, see Applications that can be deployed without their base versions.
For example, the update of Photoshop CC 2015.0.1 could be installed on a client machine that already had base version of Photoshop CC 2015 installed. The latest version of Photoshop update can be installed on a machine that may not have the Photoshop base version. So while creating a package, you can choose to package only the update version for the apps that can be deployed without their base versions.
You can package archived versions of software as well. Select the Show archived versions check box to display the list of supported previous versions, if any. If the product or update that you selected has already been downloaded to your machine, a Down Arrow appears next to its name.