Where is the Office “File->Versions” option in Office 2010?

Does anyone know where is the Office “File->Versions” menu option in Office 2010? I am talking here about multiple versions of a Word 2003 document saved using this feature, but recovering from the internal .doc file itself in Office 2010, not recovering them from a workspace location? Not sure why, Microsoft appears to have totally discontinued all support and even backward compatibility, for this earlier great feature from Office 2003 and before? 🙁