CoLab’s file revision management allows you to maintain version control over updated versions of the same file in CoLab. Once requested changes have been made to a file (PDF or 3D model), a file revision should be uploaded to CoLab for review under the original file. When using CoLab’s file revision system, the file revision will be nested under the original file.

You can upload new file revisions using 3 different methods:

Click New and then Upload a file in Drive to open the upload files modal.

Add your files for uploading. Click Suggest file matches to automatically detect if versions of these files already exist in Drive.
​
​Note: File matching is based on file name, not file content.

If there are matches, CoLab will suggest the revision match and what revision number the file will be uploaded as.

If a file is wrongly matched as a revision, you can either remove the file from the upload or it will be uploaded as a new file in Drive.

Right click on an existing file in Drive and select Upload new revision.

For a file under review, click the Open dropdown menu and select Upload a revision.

To see the all revisions of a file, click the arrow to the left of the file name in Drive.