Versioning keeps dated or serialized copies of all the different versions of a piece of content. This allows the scheduling of content on and off the web.

It also allows Rollback of content (perhaps even the whole website) to a previous version. Old versions become an Archive of content.

In this sense, Versioning is an aspect of Version Control.

Versioning also describes multiple versions of a piece of content, created for different purposes. A derivative becomes a new piece of content, and a version of the original.

When different versions are prepared for different audiences (Personalization), it is not unlike the multi-channel delivery to different hardware devices.

Delivering to audiences is more affordable than full One On One? marketing. the only thing truly personal to the individual might be a "Hello, Bob Doyle."

Multilingual content management systems maintain different language versions. These are called language variants in the Resource Description Framework.