Edition: Professional, Business, Enterprise
User-level: All user levels can upload new versions
Use the Upload a Version feature to create a new file version, even if the file isn't checked out to you or has been saved with a different name. The previous version remains accessible in the document properties window.
Project menu > Project Information > Document register
Locate the file you want to upload a new version of
Select the '...' to the right of the file > Upload new version
Choose file & Add a comment
Click the 'save' button.
The list refreshes and the imported file is now the latest version of the document.
Tips!
Use the rollback feature in the documents properties window to return to a previous file version.