You can restore content to a previous version or duplicate a past version of a post as a new draft. Just click on the three dot icon in the top right corner of any post and select Version history from the menu.

Choose the version you want from the list and click the three dot icon on the right side. If you click Restore this version, the content will be automatically updated and a new version history created. If you click Duplicate as draft, a new content draft will be created.

When you are finished restoring content or creating a new draft, click Save to finalize your updates.