WordPress Plugin for Multiple Versions of Same Page

Does anyone know of a wordpress plugin that would allow me to create multiple versions of the same page. What I’m trying to achieve is the ability to create a page for, example, cat app. Then the plugin would allow me to create a ‘sub’ version of the page: cat app v2, cat app v3. It’s difficult to explain but I’m working on a big site that will have several pages, and several subpages, and the owners want to be able to easily edit the pages. On the front end, if you go to the cat app page, you should see the most recent version.