On the "Configure Jenkins" page, when adding a new Gradle installation, the list selector with available versions starts with the oldest Gradle version and has the newest (1.11 at time of writing) at the bottom. The initial default is the topmost, and therefore oldest, item.

I think this order should be reversed, since when I am adding a Gradle installer, I am more likely to want a recent version. Newest-first would also be more consistent with other build tool plugins, such as Maven and Ant.