In this scenario, changes are required in version 2 of a topic, which is in a Released state. A newer version exists, version 3, and is in a Draft state. Because version 2 is not the latest version of the topic, you must create a new branch off of version 2. If the changes that you are making to version 2 also apply to version 3, you can update version 3 since it is in a Draft state.