Represents a single revision in the project. 
   Namespace:   Autodesk.Revit.DB  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0) 
  Since:  2015 
Syntax
Remarks
 The Revision object represents the data related to a single revision in the project. Revision clouds and tags can be associated with a particular Revision object to display its properties on sheets. 
 The revisions in the project are stored in a specific order called the revision sequence. The revision sequence represents the conceptual sequence in which revisions will be issued.