Each time a file is updated, the earlier version is kept as a version of that file. These steps are for the web app.
Open the version history
Choose Version history from the file's menu. The window lists the versions, and the newest one is marked Current. A file that has only one version shows the message "This file has only one version."
Download an older version
Click Download on the row of the version you want. Each row shows its version number, such as Version 2.
Delete some versions
Choose Delete from the file's menu. If the file has more than one version, the window lists them under the file name. Tick the versions you want to delete, for example Delete version 2 of the file, then click Delete. Versions you do not tick are kept. Deleting cannot be undone.
What you cannot do yet
- You cannot restore an older version as the current one. You can download it, but the current version stays the same.
To rename or move the file, see Rename, move or delete a file.