If you want to see a list of all the versions and subversions of a document, click the Actions drop-down menu, then select More > Versions.
The Versions window appears with the following information:
Version – The document version or subversion number. All of the item’s versions and subversions appear with the latest version/subversion listed first. For example: 3B, 3A, 2, 1A, 1. Subversions are designated with numbers and letters; versions are numbers only.
Last Edit Date – The date the version/subversion of the document was last accessed.
Last Edit Time – The time the version/subversion of the document was last accessed.
Status – Indicates the status of the version/subversion, such as Checked Out or Available.
Comments – The information from the Comments field when the version/subversion was created or checked in.