View Source

When viewing a list of attachments, you can add a new version of an existing attachment by uploading an attachment with the same file name, as displayed on the attachment view. Existing files will be kept with the name 'Version x', where the value of 'x' increments with each upload of an attachment with the same file name.

To see all versions of an attachment: Choose the arrow next to an attachment name.

Related pages:

Screenshot: Attachment versions

Notes

You cannot revert to a previous version of an attachment. See feature request CONF-1943.
Confluence does not track the history of attachments in the same way as it does for pages. See feature request CONF-13943.
By default, attachments and their versions are stored in the <confluence_home>/attachments directory. (See Attachment Storage Configuration. )
There is no limit to the number of attachments or attachment versions, provided that there is enough disk space.