You're not reading the latest revision of this page, which is
here.
Create new version
WebMiau comes with an integrated version management system.
Versions track changes to a document. A version is simply a previous state of the document.
Whilst versions of a document are themselves immutable, an Author may continue to make changes to a document, thus resulting in a new version. Admins may restore old versions.
A new file that does not yet exist in the version system is displayed in green.
A file whose changes have not yet been saved to the version system is displayed in blue.
Sections that contain modified or new files are also displayed in green or blue.
A new or first version is created with 
Restore the latest version
.
Attention, current changes are discarded and can no longer be made
Versioning is independent of the published state of the file on a MUMIE server.