Ubuntu – How to install the latest version of a package with apt-get

It's easy to install a specific version of a package with apt-get:

apt-get install <package name>=<version>

For example:

apt-get install jenkins=1.517

But is there a shortcut for installing the latest version?

For example, say writing a script to automate Jenkins installation. After adding http:/q/pkg.jenkins-ci.org/debian to /etc/apt/sources.list, Jenkins is available from two sources. Now, I'd like to tell apt-get to install the latest version without knowing exactly what the latest version is at the time the script is executed.

Is this possible in any simple way?