Document Versioning
This feature allows you to keep multiple versions of a document, so if a stored change needs to be undone, you can restore the previous version and continue working.

When versioning is turned on, a Version History command is added to the drop-down list that users see when they click the arrow next to a document name (and the toolbar) in the Edit Properties page for the document.

Turn on Version History for a Document Library
  1. Title bar of Document LibraryClick on the title bar to open the document library (as shown at the right)
  2. In the Actions menu, click the Modify settings and columns link
  3. The Customize screen will display
  4. In the General Settings section, click the Change general settings link
  5. Scroll down to the Document Versions section, as shown here:
  6. Click Yes to turn on document versioning.
  7. At the bottom of the page, click OK.

 
USING VERSION HISTORY
  1. To view the history of a document, click the down arrow to the right of the document
  2. Click Version History to display the following screen:

  3. To view a previous version, click the link, as shown above.
  4. To clear this list, click the Delete Previous Versions button
  5. To turn off versioning for this document library

    1. Click the Modify versioning settings link in the Actions menu on the left side of the screen

    2. Scroll down to the Document Versions section and click No

    3. At the bottom of the page, click OK.

    Note:  This is the same page that appears when turning on document versioning, as mentioned in the previous section above.

  See also:   Document Versioning