Explanation
Version History is a feature that allows OGL developers to automatically save multiple versions of their active guides and provides the ability to preview any prior versions of guides. OGL console users with appropriate permissions can view the version history of guides and can select a previous version to be restored.
To access the Version History of a guide, you need to go to the Guide Settings, which can be found by clicking on the gear icon next to the guide name in the OGL console. There, you can see a list of all the saved versions of the guide, along with the date, time, and author of each version. You can also preview, restore, or delete any version of the guide from the Version History tab. References: Creating OGL Content, Oracle Guided Learning User Guide, Become a Certified Oracle Guided Learning Developer