File Versions


Mountain Duck 4.12 or later required. Previously versions could be accessed from the context menu by right-clicking on a file in Finder on macOS or File Explorer on Windows and choosing Versions.

A list of file versions can be viewed within the Versions tab of the Info window. The files can also be reverted to a chosen version of the list.

Supported Protocols

The versions feature within the Info window is supported for the following protocols:


Revert previous version

Open/Quick Look previous version

Delete version


Backblaze B2

Google Drive

Google Storage

Microsoft OneDrive

Microsoft Sharepoint



Nextcloud & ownCloud


Using S3 versions will only be displayed for buckets with versioning enabled. Versioning can be enabled per bucket in by choosing Info → S3 in Finder on macOS or File Explorer on Windows. Alternatively, enable versioning in AWS Console or Cyberduck.


You can revert to a previous version of a file by choosing Versions → … → Revert. Wait for the File Updated notification which notifies the previous version has been restored.

File Updated Notification (Windows)


Permanently delete a previous version of the selected file.


This will open a Quick Look preview on macOS or open the previous version of the file in the default application on Windows.